Home / 788,162.20-1,182,243.30-472,456.60

Finding the Fourth Proportional to 788,162.20, 1,182,243.30 and 472,456.60

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Solution

The fourth proportional to 788,162.20, 1,182,243.30 and 472,456.60 is: 708,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,162.20 : 1,182,243.30 = 472,456.60 : x
  2. Step 2: Convert to fraction form
    788,162.20/1,182,243.30 = 472,456.60/x
  3. Step 3: Cross multiply
    788,162.20x = 1,182,243.30 × 472,456.60
  4. Step 4: Simplify right side
    788,162.20x = 558,558,649,890.78
  5. Step 5: Solve for x
    x = 558,558,649,890.78/788,162.20
  6. Step 6: Final answer
    x = 708,684.90

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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.