Home / 1,521,287.20-2,281,752.96-399,443.68

Finding the Fourth Proportional to 1,521,287.20, 2,281,752.96 and 399,443.68

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Solution

The fourth proportional to 1,521,287.20, 2,281,752.96 and 399,443.68 is: 599,118.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,287.20 : 2,281,752.96 = 399,443.68 : x
  2. Step 2: Convert to fraction form
    1,521,287.20/2,281,752.96 = 399,443.68/x
  3. Step 3: Cross multiply
    1,521,287.20x = 2,281,752.96 × 399,443.68
  4. Step 4: Simplify right side
    1,521,287.20x = 911,431,799,193.29
  5. Step 5: Solve for x
    x = 911,431,799,193.29/1,521,287.20
  6. Step 6: Final answer
    x = 599,118.82

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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.