Home / 887,003.90-1,330,505.85-255,938.30

Finding the Fourth Proportional to 887,003.90, 1,330,505.85 and 255,938.30

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Solution

The fourth proportional to 887,003.90, 1,330,505.85 and 255,938.30 is: 383,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,003.90 : 1,330,505.85 = 255,938.30 : x
  2. Step 2: Convert to fraction form
    887,003.90/1,330,505.85 = 255,938.30/x
  3. Step 3: Cross multiply
    887,003.90x = 1,330,505.85 × 255,938.30
  4. Step 4: Simplify right side
    887,003.90x = 340,527,405,389.06
  5. Step 5: Solve for x
    x = 340,527,405,389.06/887,003.90
  6. Step 6: Final answer
    x = 383,907.45

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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.