Home / 739,304.60-1,020,246.46-408,171.20

Finding the Fourth Proportional to 739,304.60, 1,020,246.46 and 408,171.20

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Solution

The fourth proportional to 739,304.60, 1,020,246.46 and 408,171.20 is: 563,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,304.60 : 1,020,246.46 = 408,171.20 : x
  2. Step 2: Convert to fraction form
    739,304.60/1,020,246.46 = 408,171.20/x
  3. Step 3: Cross multiply
    739,304.60x = 1,020,246.46 × 408,171.20
  4. Step 4: Simplify right side
    739,304.60x = 416,435,221,873.95
  5. Step 5: Solve for x
    x = 416,435,221,873.95/739,304.60
  6. Step 6: Final answer
    x = 563,279.63

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.