Home / 998,543.90-1,497,815.85-620,630.30

Finding the Fourth Proportional to 998,543.90, 1,497,815.85 and 620,630.30

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Solution

The fourth proportional to 998,543.90, 1,497,815.85 and 620,630.30 is: 930,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,543.90 : 1,497,815.85 = 620,630.30 : x
  2. Step 2: Convert to fraction form
    998,543.90/1,497,815.85 = 620,630.30/x
  3. Step 3: Cross multiply
    998,543.90x = 1,497,815.85 × 620,630.30
  4. Step 4: Simplify right side
    998,543.90x = 929,589,900,330.26
  5. Step 5: Solve for x
    x = 929,589,900,330.26/998,543.90
  6. Step 6: Final answer
    x = 930,945.45

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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.