Home / 708,689.20-1,063,033.80-620,115.70

Finding the Fourth Proportional to 708,689.20, 1,063,033.80 and 620,115.70

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Solution

The fourth proportional to 708,689.20, 1,063,033.80 and 620,115.70 is: 930,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,689.20 : 1,063,033.80 = 620,115.70 : x
  2. Step 2: Convert to fraction form
    708,689.20/1,063,033.80 = 620,115.70/x
  3. Step 3: Cross multiply
    708,689.20x = 1,063,033.80 × 620,115.70
  4. Step 4: Simplify right side
    708,689.20x = 659,203,949,010.66
  5. Step 5: Solve for x
    x = 659,203,949,010.66/708,689.20
  6. Step 6: Final answer
    x = 930,173.55

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Double scale
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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.