Home / 903,926.28-1,247,109.30-516,463.69

Finding the Fourth Proportional to 903,926.28, 1,247,109.30 and 516,463.69

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Solution

The fourth proportional to 903,926.28, 1,247,109.30 and 516,463.69 is: 712,543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,926.28 : 1,247,109.30 = 516,463.69 : x
  2. Step 2: Convert to fraction form
    903,926.28/1,247,109.30 = 516,463.69/x
  3. Step 3: Cross multiply
    903,926.28x = 1,247,109.30 × 516,463.69
  4. Step 4: Simplify right side
    903,926.28x = 644,086,668,974.58
  5. Step 5: Solve for x
    x = 644,086,668,974.58/903,926.28
  6. Step 6: Final answer
    x = 712,543.36

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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.