Home / 998,798.57-1,499,264.02-430,460.15

Finding the Fourth Proportional to 998,798.57, 1,499,264.02 and 430,460.15

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Solution

The fourth proportional to 998,798.57, 1,499,264.02 and 430,460.15 is: 646,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,798.57 : 1,499,264.02 = 430,460.15 : x
  2. Step 2: Convert to fraction form
    998,798.57/1,499,264.02 = 430,460.15/x
  3. Step 3: Cross multiply
    998,798.57x = 1,499,264.02 × 430,460.15
  4. Step 4: Simplify right side
    998,798.57x = 645,373,411,591.88
  5. Step 5: Solve for x
    x = 645,373,411,591.88/998,798.57
  6. Step 6: Final answer
    x = 646,149.71

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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.