Home / 1,425,868.80-2,138,803.20-478,924.80

Finding the Fourth Proportional to 1,425,868.80, 2,138,803.20 and 478,924.80

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Solution

The fourth proportional to 1,425,868.80, 2,138,803.20 and 478,924.80 is: 718,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,868.80 : 2,138,803.20 = 478,924.80 : x
  2. Step 2: Convert to fraction form
    1,425,868.80/2,138,803.20 = 478,924.80/x
  3. Step 3: Cross multiply
    1,425,868.80x = 2,138,803.20 × 478,924.80
  4. Step 4: Simplify right side
    1,425,868.80x = 1,024,325,894,799.36
  5. Step 5: Solve for x
    x = 1,024,325,894,799.36/1,425,868.80
  6. Step 6: Final answer
    x = 718,387.20

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Similar ratio
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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.