Home / 878,697.45-1,318,046.18-317,600.73

Finding the Fourth Proportional to 878,697.45, 1,318,046.18 and 317,600.73

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Solution

The fourth proportional to 878,697.45, 1,318,046.18 and 317,600.73 is: 476,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,697.45 : 1,318,046.18 = 317,600.73 : x
  2. Step 2: Convert to fraction form
    878,697.45/1,318,046.18 = 317,600.73/x
  3. Step 3: Cross multiply
    878,697.45x = 1,318,046.18 × 317,600.73
  4. Step 4: Simplify right side
    878,697.45x = 418,612,427,353.71
  5. Step 5: Solve for x
    x = 418,612,427,353.71/878,697.45
  6. Step 6: Final answer
    x = 476,401.10

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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.