Home / 998,531.20-1,497,803.20-399,542.40

Finding the Fourth Proportional to 998,531.20, 1,497,803.20 and 399,542.40

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Solution

The fourth proportional to 998,531.20, 1,497,803.20 and 399,542.40 is: 599,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,531.20 : 1,497,803.20 = 399,542.40 : x
  2. Step 2: Convert to fraction form
    998,531.20/1,497,803.20 = 399,542.40/x
  3. Step 3: Cross multiply
    998,531.20x = 1,497,803.20 × 399,542.40
  4. Step 4: Simplify right side
    998,531.20x = 598,435,885,255.68
  5. Step 5: Solve for x
    x = 598,435,885,255.68/998,531.20
  6. Step 6: Final answer
    x = 599,316.16

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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.