Home / 935,879.60-1,403,819.40-304,857.20

Finding the Fourth Proportional to 935,879.60, 1,403,819.40 and 304,857.20

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Solution

The fourth proportional to 935,879.60, 1,403,819.40 and 304,857.20 is: 457,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,879.60 : 1,403,819.40 = 304,857.20 : x
  2. Step 2: Convert to fraction form
    935,879.60/1,403,819.40 = 304,857.20/x
  3. Step 3: Cross multiply
    935,879.60x = 1,403,819.40 × 304,857.20
  4. Step 4: Simplify right side
    935,879.60x = 427,964,451,589.68
  5. Step 5: Solve for x
    x = 427,964,451,589.68/935,879.60
  6. Step 6: Final answer
    x = 457,285.80

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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.