Home / 998,580.10-1,498,064.55-429,960.10

Finding the Fourth Proportional to 998,580.10, 1,498,064.55 and 429,960.10

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Solution

The fourth proportional to 998,580.10, 1,498,064.55 and 429,960.10 is: 645,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,580.10 : 1,498,064.55 = 429,960.10 : x
  2. Step 2: Convert to fraction form
    998,580.10/1,498,064.55 = 429,960.10/x
  3. Step 3: Cross multiply
    998,580.10x = 1,498,064.55 × 429,960.10
  4. Step 4: Simplify right side
    998,580.10x = 644,107,983,724.46
  5. Step 5: Solve for x
    x = 644,107,983,724.46/998,580.10
  6. Step 6: Final answer
    x = 645,023.85

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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.