Home / 665,765.49-918,737.92-375,374.52

Finding the Fourth Proportional to 665,765.49, 918,737.92 and 375,374.52

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Solution

The fourth proportional to 665,765.49, 918,737.92 and 375,374.52 is: 518,006.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,765.49 : 918,737.92 = 375,374.52 : x
  2. Step 2: Convert to fraction form
    665,765.49/918,737.92 = 375,374.52/x
  3. Step 3: Cross multiply
    665,765.49x = 918,737.92 × 375,374.52
  4. Step 4: Simplify right side
    665,765.49x = 344,870,806,195.02
  5. Step 5: Solve for x
    x = 344,870,806,195.02/665,765.49
  6. Step 6: Final answer
    x = 518,006.43

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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.