Home / 807,467.70-1,211,201.55-542,046.90

Finding the Fourth Proportional to 807,467.70, 1,211,201.55 and 542,046.90

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Solution

The fourth proportional to 807,467.70, 1,211,201.55 and 542,046.90 is: 813,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,467.70 : 1,211,201.55 = 542,046.90 : x
  2. Step 2: Convert to fraction form
    807,467.70/1,211,201.55 = 542,046.90/x
  3. Step 3: Cross multiply
    807,467.70x = 1,211,201.55 × 542,046.90
  4. Step 4: Simplify right side
    807,467.70x = 656,528,045,452.70
  5. Step 5: Solve for x
    x = 656,528,045,452.70/807,467.70
  6. Step 6: Final answer
    x = 813,070.35

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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.