Home / 734,809.20-1,102,213.80-314,127.60

Finding the Fourth Proportional to 734,809.20, 1,102,213.80 and 314,127.60

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Solution

The fourth proportional to 734,809.20, 1,102,213.80 and 314,127.60 is: 471,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,809.20 : 1,102,213.80 = 314,127.60 : x
  2. Step 2: Convert to fraction form
    734,809.20/1,102,213.80 = 314,127.60/x
  3. Step 3: Cross multiply
    734,809.20x = 1,102,213.80 × 314,127.60
  4. Step 4: Simplify right side
    734,809.20x = 346,235,775,680.88
  5. Step 5: Solve for x
    x = 346,235,775,680.88/734,809.20
  6. Step 6: Final answer
    x = 471,191.40

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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.