Home / 3,812,521.20-5,718,781.80-1,288,176.45

Finding the Fourth Proportional to 3,812,521.20, 5,718,781.80 and 1,288,176.45

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Solution

The fourth proportional to 3,812,521.20, 5,718,781.80 and 1,288,176.45 is: 1,932,264.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812,521.20 : 5,718,781.80 = 1,288,176.45 : x
  2. Step 2: Convert to fraction form
    3,812,521.20/5,718,781.80 = 1,288,176.45/x
  3. Step 3: Cross multiply
    3,812,521.20x = 5,718,781.80 × 1,288,176.45
  4. Step 4: Simplify right side
    3,812,521.20x = 7,366,800,037,448.61
  5. Step 5: Solve for x
    x = 7,366,800,037,448.61/3,812,521.20
  6. Step 6: Final answer
    x = 1,932,264.68

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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.