Home / 998,642.40-1,496,979.45-492,789.30

Finding the Fourth Proportional to 998,642.40, 1,496,979.45 and 492,789.30

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Solution

The fourth proportional to 998,642.40, 1,496,979.45 and 492,789.30 is: 738,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,642.40 : 1,496,979.45 = 492,789.30 : x
  2. Step 2: Convert to fraction form
    998,642.40/1,496,979.45 = 492,789.30/x
  3. Step 3: Cross multiply
    998,642.40x = 1,496,979.45 × 492,789.30
  4. Step 4: Simplify right side
    998,642.40x = 737,695,455,279.89
  5. Step 5: Solve for x
    x = 737,695,455,279.89/998,642.40
  6. Step 6: Final answer
    x = 738,698.31

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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.