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Finding the Fourth Proportional to 621,260.97, 930,525.46 and 513,422.73

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Solution

The fourth proportional to 621,260.97, 930,525.46 and 513,422.73 is: 769,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,260.97 : 930,525.46 = 513,422.73 : x
  2. Step 2: Convert to fraction form
    621,260.97/930,525.46 = 513,422.73/x
  3. Step 3: Cross multiply
    621,260.97x = 930,525.46 × 513,422.73
  4. Step 4: Simplify right side
    621,260.97x = 477,752,922,007.71
  5. Step 5: Solve for x
    x = 477,752,922,007.71/621,260.97
  6. Step 6: Final answer
    x = 769,005.21

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Double scale
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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.