Home / 715,542.73-986,408.49-500,013.88

Finding the Fourth Proportional to 715,542.73, 986,408.49 and 500,013.88

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Solution

The fourth proportional to 715,542.73, 986,408.49 and 500,013.88 is: 689,292.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,542.73 : 986,408.49 = 500,013.88 : x
  2. Step 2: Convert to fraction form
    715,542.73/986,408.49 = 500,013.88/x
  3. Step 3: Cross multiply
    715,542.73x = 986,408.49 × 500,013.88
  4. Step 4: Simplify right side
    715,542.73x = 493,217,936,349.84
  5. Step 5: Solve for x
    x = 493,217,936,349.84/715,542.73
  6. Step 6: Final answer
    x = 689,292.08

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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.