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Finding the Fourth Proportional to 647,717.17, 972,417.68 and 498,062.55

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Solution

The fourth proportional to 647,717.17, 972,417.68 and 498,062.55 is: 747,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,717.17 : 972,417.68 = 498,062.55 : x
  2. Step 2: Convert to fraction form
    647,717.17/972,417.68 = 498,062.55/x
  3. Step 3: Cross multiply
    647,717.17x = 972,417.68 × 498,062.55
  4. Step 4: Simplify right side
    647,717.17x = 484,324,826,875.57
  5. Step 5: Solve for x
    x = 484,324,826,875.57/647,717.17
  6. Step 6: Final answer
    x = 747,741.22

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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.