Home / 678,027.40-1,015,874.70-441,248.20

Finding the Fourth Proportional to 678,027.40, 1,015,874.70 and 441,248.20

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Solution

The fourth proportional to 678,027.40, 1,015,874.70 and 441,248.20 is: 661,113.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,027.40 : 1,015,874.70 = 441,248.20 : x
  2. Step 2: Convert to fraction form
    678,027.40/1,015,874.70 = 441,248.20/x
  3. Step 3: Cross multiply
    678,027.40x = 1,015,874.70 × 441,248.20
  4. Step 4: Simplify right side
    678,027.40x = 448,252,882,800.54
  5. Step 5: Solve for x
    x = 448,252,882,800.54/678,027.40
  6. Step 6: Final answer
    x = 661,113.23

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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.