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Finding the Fourth Proportional to 532,929.30, 735,420.48 and 291,220.20

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Solution

The fourth proportional to 532,929.30, 735,420.48 and 291,220.20 is: 401,871.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,929.30 : 735,420.48 = 291,220.20 : x
  2. Step 2: Convert to fraction form
    532,929.30/735,420.48 = 291,220.20/x
  3. Step 3: Cross multiply
    532,929.30x = 735,420.48 × 291,220.20
  4. Step 4: Simplify right side
    532,929.30x = 214,169,299,269.70
  5. Step 5: Solve for x
    x = 214,169,299,269.70/532,929.30
  6. Step 6: Final answer
    x = 401,871.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.