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Finding the Fourth Proportional to 572,499.60, 858,058.20 and 291,872.40

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Solution

The fourth proportional to 572,499.60, 858,058.20 and 291,872.40 is: 437,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,499.60 : 858,058.20 = 291,872.40 : x
  2. Step 2: Convert to fraction form
    572,499.60/858,058.20 = 291,872.40/x
  3. Step 3: Cross multiply
    572,499.60x = 858,058.20 × 291,872.40
  4. Step 4: Simplify right side
    572,499.60x = 250,443,506,173.68
  5. Step 5: Solve for x
    x = 250,443,506,173.68/572,499.60
  6. Step 6: Final answer
    x = 437,456.21

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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.