Home / 1,071,380.53-1,478,523.09-587,990.65

Finding the Fourth Proportional to 1,071,380.53, 1,478,523.09 and 587,990.65

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Solution

The fourth proportional to 1,071,380.53, 1,478,523.09 and 587,990.65 is: 811,436.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,380.53 : 1,478,523.09 = 587,990.65 : x
  2. Step 2: Convert to fraction form
    1,071,380.53/1,478,523.09 = 587,990.65/x
  3. Step 3: Cross multiply
    1,071,380.53x = 1,478,523.09 × 587,990.65
  4. Step 4: Simplify right side
    1,071,380.53x = 869,357,752,729.11
  5. Step 5: Solve for x
    x = 869,357,752,729.11/1,071,380.53
  6. Step 6: Final answer
    x = 811,436.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.