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Finding the Fourth Proportional to 524,861.88, 724,658 and 403,789.56

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Solution

The fourth proportional to 524,861.88, 724,658 and 403,789.56 is: 557,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,861.88 : 724,658 = 403,789.56 : x
  2. Step 2: Convert to fraction form
    524,861.88/724,658 = 403,789.56/x
  3. Step 3: Cross multiply
    524,861.88x = 724,658 × 403,789.56
  4. Step 4: Simplify right side
    524,861.88x = 292,609,334,970.48
  5. Step 5: Solve for x
    x = 292,609,334,970.48/524,861.88
  6. Step 6: Final answer
    x = 557,497.78

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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.