Home / 1,107,907.40-1,660,694.70-433,728.20

Finding the Fourth Proportional to 1,107,907.40, 1,660,694.70 and 433,728.20

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Solution

The fourth proportional to 1,107,907.40, 1,660,694.70 and 433,728.20 is: 650,135.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,907.40 : 1,660,694.70 = 433,728.20 : x
  2. Step 2: Convert to fraction form
    1,107,907.40/1,660,694.70 = 433,728.20/x
  3. Step 3: Cross multiply
    1,107,907.40x = 1,660,694.70 × 433,728.20
  4. Step 4: Simplify right side
    1,107,907.40x = 720,290,122,980.54
  5. Step 5: Solve for x
    x = 720,290,122,980.54/1,107,907.40
  6. Step 6: Final answer
    x = 650,135.67

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.