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Finding the Fourth Proportional to 836,700.30, 1,253,668.05 and 712,284.30

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Solution

The fourth proportional to 836,700.30, 1,253,668.05 and 712,284.30 is: 1,067,249.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,700.30 : 1,253,668.05 = 712,284.30 : x
  2. Step 2: Convert to fraction form
    836,700.30/1,253,668.05 = 712,284.30/x
  3. Step 3: Cross multiply
    836,700.30x = 1,253,668.05 × 712,284.30
  4. Step 4: Simplify right side
    836,700.30x = 892,968,069,426.62
  5. Step 5: Solve for x
    x = 892,968,069,426.62/836,700.30
  6. Step 6: Final answer
    x = 1,067,249.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.