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Finding the Fourth Proportional to 646,713.70, 970,070.55 and 636,216.10

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Solution

The fourth proportional to 646,713.70, 970,070.55 and 636,216.10 is: 954,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,713.70 : 970,070.55 = 636,216.10 : x
  2. Step 2: Convert to fraction form
    646,713.70/970,070.55 = 636,216.10/x
  3. Step 3: Cross multiply
    646,713.70x = 970,070.55 × 636,216.10
  4. Step 4: Simplify right side
    646,713.70x = 617,174,502,045.86
  5. Step 5: Solve for x
    x = 617,174,502,045.86/646,713.70
  6. Step 6: Final answer
    x = 954,324.15

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Similar ratio
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1.5x scale

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.