Home / 413,719.20-571,006.80-243,943.20

Finding the Fourth Proportional to 413,719.20, 571,006.80 and 243,943.20

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Solution

The fourth proportional to 413,719.20, 571,006.80 and 243,943.20 is: 336,685.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,719.20 : 571,006.80 = 243,943.20 : x
  2. Step 2: Convert to fraction form
    413,719.20/571,006.80 = 243,943.20/x
  3. Step 3: Cross multiply
    413,719.20x = 571,006.80 × 243,943.20
  4. Step 4: Simplify right side
    413,719.20x = 139,293,226,013.76
  5. Step 5: Solve for x
    x = 139,293,226,013.76/413,719.20
  6. Step 6: Final answer
    x = 336,685.43

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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.