Home / 413,721.20-571,009.56-243,945.20

Finding the Fourth Proportional to 413,721.20, 571,009.56 and 243,945.20

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Solution

The fourth proportional to 413,721.20, 571,009.56 and 243,945.20 is: 336,688.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,721.20 : 571,009.56 = 243,945.20 : x
  2. Step 2: Convert to fraction form
    413,721.20/571,009.56 = 243,945.20/x
  3. Step 3: Cross multiply
    413,721.20x = 571,009.56 × 243,945.20
  4. Step 4: Simplify right side
    413,721.20x = 139,295,041,316.11
  5. Step 5: Solve for x
    x = 139,295,041,316.11/413,721.20
  6. Step 6: Final answer
    x = 336,688.19

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Similar ratio
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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.