Home / 929,456.87-1,282,646.97-521,557.79

Finding the Fourth Proportional to 929,456.87, 1,282,646.97 and 521,557.79

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Solution

The fourth proportional to 929,456.87, 1,282,646.97 and 521,557.79 is: 719,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,456.87 : 1,282,646.97 = 521,557.79 : x
  2. Step 2: Convert to fraction form
    929,456.87/1,282,646.97 = 521,557.79/x
  3. Step 3: Cross multiply
    929,456.87x = 1,282,646.97 × 521,557.79
  4. Step 4: Simplify right side
    929,456.87x = 668,974,512,610.16
  5. Step 5: Solve for x
    x = 668,974,512,610.16/929,456.87
  6. Step 6: Final answer
    x = 719,747.78

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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.