Home / 998,520.30-1,497,780.45-679,655.70

Finding the Fourth Proportional to 998,520.30, 1,497,780.45 and 679,655.70

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Solution

The fourth proportional to 998,520.30, 1,497,780.45 and 679,655.70 is: 1,019,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,520.30 : 1,497,780.45 = 679,655.70 : x
  2. Step 2: Convert to fraction form
    998,520.30/1,497,780.45 = 679,655.70/x
  3. Step 3: Cross multiply
    998,520.30x = 1,497,780.45 × 679,655.70
  4. Step 4: Simplify right side
    998,520.30x = 1,017,975,020,191.07
  5. Step 5: Solve for x
    x = 1,017,975,020,191.07/998,520.30
  6. Step 6: Final answer
    x = 1,019,483.55

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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.