Home / 738,081.90-1,107,122.85-472,142.70

Finding the Fourth Proportional to 738,081.90, 1,107,122.85 and 472,142.70

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Solution

The fourth proportional to 738,081.90, 1,107,122.85 and 472,142.70 is: 708,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,081.90 : 1,107,122.85 = 472,142.70 : x
  2. Step 2: Convert to fraction form
    738,081.90/1,107,122.85 = 472,142.70/x
  3. Step 3: Cross multiply
    738,081.90x = 1,107,122.85 × 472,142.70
  4. Step 4: Simplify right side
    738,081.90x = 522,719,971,630.70
  5. Step 5: Solve for x
    x = 522,719,971,630.70/738,081.90
  6. Step 6: Final answer
    x = 708,214.05

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