Home / 998,140.56-1,496,766.06-287,999.88

Finding the Fourth Proportional to 998,140.56, 1,496,766.06 and 287,999.88

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Solution

The fourth proportional to 998,140.56, 1,496,766.06 and 287,999.88 is: 431,871.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,140.56 : 1,496,766.06 = 287,999.88 : x
  2. Step 2: Convert to fraction form
    998,140.56/1,496,766.06 = 287,999.88/x
  3. Step 3: Cross multiply
    998,140.56x = 1,496,766.06 × 287,999.88
  4. Step 4: Simplify right side
    998,140.56x = 431,068,445,668.07
  5. Step 5: Solve for x
    x = 431,068,445,668.07/998,140.56
  6. Step 6: Final answer
    x = 431,871.48

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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.