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Finding the Fourth Proportional to 487,231.60, 730,847.40 and 277,279.60

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Solution

The fourth proportional to 487,231.60, 730,847.40 and 277,279.60 is: 415,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,231.60 : 730,847.40 = 277,279.60 : x
  2. Step 2: Convert to fraction form
    487,231.60/730,847.40 = 277,279.60/x
  3. Step 3: Cross multiply
    487,231.60x = 730,847.40 × 277,279.60
  4. Step 4: Simplify right side
    487,231.60x = 202,649,074,733.04
  5. Step 5: Solve for x
    x = 202,649,074,733.04/487,231.60
  6. Step 6: Final answer
    x = 415,919.40

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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.