Home / 998,475.20-1,497,719.20-399,486.40

Finding the Fourth Proportional to 998,475.20, 1,497,719.20 and 399,486.40

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Solution

The fourth proportional to 998,475.20, 1,497,719.20 and 399,486.40 is: 599,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,475.20 : 1,497,719.20 = 399,486.40 : x
  2. Step 2: Convert to fraction form
    998,475.20/1,497,719.20 = 399,486.40/x
  3. Step 3: Cross multiply
    998,475.20x = 1,497,719.20 × 399,486.40
  4. Step 4: Simplify right side
    998,475.20x = 598,318,451,418.88
  5. Step 5: Solve for x
    x = 598,318,451,418.88/998,475.20
  6. Step 6: Final answer
    x = 599,232.16

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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.