Home / 807,455.20-1,211,182.80-542,034.40

Finding the Fourth Proportional to 807,455.20, 1,211,182.80 and 542,034.40

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Solution

The fourth proportional to 807,455.20, 1,211,182.80 and 542,034.40 is: 813,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,455.20 : 1,211,182.80 = 542,034.40 : x
  2. Step 2: Convert to fraction form
    807,455.20/1,211,182.80 = 542,034.40/x
  3. Step 3: Cross multiply
    807,455.20x = 1,211,182.80 × 542,034.40
  4. Step 4: Simplify right side
    807,455.20x = 656,502,742,288.32
  5. Step 5: Solve for x
    x = 656,502,742,288.32/807,455.20
  6. Step 6: Final answer
    x = 813,051.60

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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.