Home / 747,819.18-1,121,730.39-327,127.86

Finding the Fourth Proportional to 747,819.18, 1,121,730.39 and 327,127.86

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Solution

The fourth proportional to 747,819.18, 1,121,730.39 and 327,127.86 is: 490,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,819.18 : 1,121,730.39 = 327,127.86 : x
  2. Step 2: Convert to fraction form
    747,819.18/1,121,730.39 = 327,127.86/x
  3. Step 3: Cross multiply
    747,819.18x = 1,121,730.39 × 327,127.86
  4. Step 4: Simplify right side
    747,819.18x = 366,949,261,977.67
  5. Step 5: Solve for x
    x = 366,949,261,977.67/747,819.18
  6. Step 6: Final answer
    x = 490,692.50

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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.