Home / 1,057,489.20-1,586,233.80-347,540.40

Finding the Fourth Proportional to 1,057,489.20, 1,586,233.80 and 347,540.40

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Solution

The fourth proportional to 1,057,489.20, 1,586,233.80 and 347,540.40 is: 521,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,489.20 : 1,586,233.80 = 347,540.40 : x
  2. Step 2: Convert to fraction form
    1,057,489.20/1,586,233.80 = 347,540.40/x
  3. Step 3: Cross multiply
    1,057,489.20x = 1,586,233.80 × 347,540.40
  4. Step 4: Simplify right side
    1,057,489.20x = 551,280,329,345.52
  5. Step 5: Solve for x
    x = 551,280,329,345.52/1,057,489.20
  6. Step 6: Final answer
    x = 521,310.60

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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.