Home / 516,016.61-712,079.17-286,588.47

Finding the Fourth Proportional to 516,016.61, 712,079.17 and 286,588.47

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Solution

The fourth proportional to 516,016.61, 712,079.17 and 286,588.47 is: 395,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,016.61 : 712,079.17 = 286,588.47 : x
  2. Step 2: Convert to fraction form
    516,016.61/712,079.17 = 286,588.47/x
  3. Step 3: Cross multiply
    516,016.61x = 712,079.17 × 286,588.47
  4. Step 4: Simplify right side
    516,016.61x = 204,073,677,400.71
  5. Step 5: Solve for x
    x = 204,073,677,400.71/516,016.61
  6. Step 6: Final answer
    x = 395,478.89

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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.