Home / 708,998.80-1,063,498.20-620,425.30

Finding the Fourth Proportional to 708,998.80, 1,063,498.20 and 620,425.30

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Solution

The fourth proportional to 708,998.80, 1,063,498.20 and 620,425.30 is: 930,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,998.80 : 1,063,498.20 = 620,425.30 : x
  2. Step 2: Convert to fraction form
    708,998.80/1,063,498.20 = 620,425.30/x
  3. Step 3: Cross multiply
    708,998.80x = 1,063,498.20 × 620,425.30
  4. Step 4: Simplify right side
    708,998.80x = 659,821,189,784.46
  5. Step 5: Solve for x
    x = 659,821,189,784.46/708,998.80
  6. Step 6: Final answer
    x = 930,637.95

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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.