Home / 988,115.60-1,482,238.20-278,166.80

Finding the Fourth Proportional to 988,115.60, 1,482,238.20 and 278,166.80

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Solution

The fourth proportional to 988,115.60, 1,482,238.20 and 278,166.80 is: 417,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,115.60 : 1,482,238.20 = 278,166.80 : x
  2. Step 2: Convert to fraction form
    988,115.60/1,482,238.20 = 278,166.80/x
  3. Step 3: Cross multiply
    988,115.60x = 1,482,238.20 × 278,166.80
  4. Step 4: Simplify right side
    988,115.60x = 412,309,456,931.76
  5. Step 5: Solve for x
    x = 412,309,456,931.76/988,115.60
  6. Step 6: Final answer
    x = 417,268.44

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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.