Home / 674,614.20-1,011,338.10-408,091.80

Finding the Fourth Proportional to 674,614.20, 1,011,338.10 and 408,091.80

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Solution

The fourth proportional to 674,614.20, 1,011,338.10 and 408,091.80 is: 611,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,614.20 : 1,011,338.10 = 408,091.80 : x
  2. Step 2: Convert to fraction form
    674,614.20/1,011,338.10 = 408,091.80/x
  3. Step 3: Cross multiply
    674,614.20x = 1,011,338.10 × 408,091.80
  4. Step 4: Simplify right side
    674,614.20x = 412,718,785,637.58
  5. Step 5: Solve for x
    x = 412,718,785,637.58/674,614.20
  6. Step 6: Final answer
    x = 611,784.91

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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.