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Finding the Fourth Proportional to 484,005.20, 726,007.80 and 465,634.40

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Solution

The fourth proportional to 484,005.20, 726,007.80 and 465,634.40 is: 698,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,005.20 : 726,007.80 = 465,634.40 : x
  2. Step 2: Convert to fraction form
    484,005.20/726,007.80 = 465,634.40/x
  3. Step 3: Cross multiply
    484,005.20x = 726,007.80 × 465,634.40
  4. Step 4: Simplify right side
    484,005.20x = 338,054,206,348.32
  5. Step 5: Solve for x
    x = 338,054,206,348.32/484,005.20
  6. Step 6: Final answer
    x = 698,451.60

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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.