Home / 998,014.99-1,498,141.55-399,393.40

Finding the Fourth Proportional to 998,014.99, 1,498,141.55 and 399,393.40

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Solution

The fourth proportional to 998,014.99, 1,498,141.55 and 399,393.40 is: 599,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,014.99 : 1,498,141.55 = 399,393.40 : x
  2. Step 2: Convert to fraction form
    998,014.99/1,498,141.55 = 399,393.40/x
  3. Step 3: Cross multiply
    998,014.99x = 1,498,141.55 × 399,393.40
  4. Step 4: Simplify right side
    998,014.99x = 598,347,845,338.80
  5. Step 5: Solve for x
    x = 598,347,845,338.80/998,014.99
  6. Step 6: Final answer
    x = 599,537.93

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Double scale
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1.5x scale

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.