Home / 807,467.20-1,211,200.80-542,046.40

Finding the Fourth Proportional to 807,467.20, 1,211,200.80 and 542,046.40

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Solution

The fourth proportional to 807,467.20, 1,211,200.80 and 542,046.40 is: 813,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,467.20 : 1,211,200.80 = 542,046.40 : x
  2. Step 2: Convert to fraction form
    807,467.20/1,211,200.80 = 542,046.40/x
  3. Step 3: Cross multiply
    807,467.20x = 1,211,200.80 × 542,046.40
  4. Step 4: Simplify right side
    807,467.20x = 656,527,033,317.12
  5. Step 5: Solve for x
    x = 656,527,033,317.12/807,467.20
  6. Step 6: Final answer
    x = 813,069.60

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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.