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Finding the Fourth Proportional to 524,862.88, 724,659.38 and 403,790.56

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Solution

The fourth proportional to 524,862.88, 724,659.38 and 403,790.56 is: 557,499.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,862.88 : 724,659.38 = 403,790.56 : x
  2. Step 2: Convert to fraction form
    524,862.88/724,659.38 = 403,790.56/x
  3. Step 3: Cross multiply
    524,862.88x = 724,659.38 × 403,790.56
  4. Step 4: Simplify right side
    524,862.88x = 292,610,616,859.45
  5. Step 5: Solve for x
    x = 292,610,616,859.45/524,862.88
  6. Step 6: Final answer
    x = 557,499.16

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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.