Home / 1,425,836.68-2,138,755.02-479,207.40

Finding the Fourth Proportional to 1,425,836.68, 2,138,755.02 and 479,207.40

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Solution

The fourth proportional to 1,425,836.68, 2,138,755.02 and 479,207.40 is: 718,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,836.68 : 2,138,755.02 = 479,207.40 : x
  2. Step 2: Convert to fraction form
    1,425,836.68/2,138,755.02 = 479,207.40/x
  3. Step 3: Cross multiply
    1,425,836.68x = 2,138,755.02 × 479,207.40
  4. Step 4: Simplify right side
    1,425,836.68x = 1,024,907,232,371.15
  5. Step 5: Solve for x
    x = 1,024,907,232,371.15/1,425,836.68
  6. Step 6: Final answer
    x = 718,811.10

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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.