Home / 787,690.61-1,086,575.34-516,196.43

Finding the Fourth Proportional to 787,690.61, 1,086,575.34 and 516,196.43

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Solution

The fourth proportional to 787,690.61, 1,086,575.34 and 516,196.43 is: 712,064.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,690.61 : 1,086,575.34 = 516,196.43 : x
  2. Step 2: Convert to fraction form
    787,690.61/1,086,575.34 = 516,196.43/x
  3. Step 3: Cross multiply
    787,690.61x = 1,086,575.34 × 516,196.43
  4. Step 4: Simplify right side
    787,690.61x = 560,886,311,434.04
  5. Step 5: Solve for x
    x = 560,886,311,434.04/787,690.61
  6. Step 6: Final answer
    x = 712,064.23

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Double scale
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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.