Home / 905,795.11-1,249,989.88-497,892.61

Finding the Fourth Proportional to 905,795.11, 1,249,989.88 and 497,892.61

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Solution

The fourth proportional to 905,795.11, 1,249,989.88 and 497,892.61 is: 687,087.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,795.11 : 1,249,989.88 = 497,892.61 : x
  2. Step 2: Convert to fraction form
    905,795.11/1,249,989.88 = 497,892.61/x
  3. Step 3: Cross multiply
    905,795.11x = 1,249,989.88 × 497,892.61
  4. Step 4: Simplify right side
    905,795.11x = 622,360,726,951.76
  5. Step 5: Solve for x
    x = 622,360,726,951.76/905,795.11
  6. Step 6: Final answer
    x = 687,087.76

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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.