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Finding the Fourth Proportional to 521,916.59, 720,244.40 and 292,475.68

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Solution

The fourth proportional to 521,916.59, 720,244.40 and 292,475.68 is: 403,616.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,916.59 : 720,244.40 = 292,475.68 : x
  2. Step 2: Convert to fraction form
    521,916.59/720,244.40 = 292,475.68/x
  3. Step 3: Cross multiply
    521,916.59x = 720,244.40 × 292,475.68
  4. Step 4: Simplify right side
    521,916.59x = 210,653,967,393.20
  5. Step 5: Solve for x
    x = 210,653,967,393.20/521,916.59
  6. Step 6: Final answer
    x = 403,616.15

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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.