Home / 1,071,377.65-1,478,519.12-587,987.78

Finding the Fourth Proportional to 1,071,377.65, 1,478,519.12 and 587,987.78

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Solution

The fourth proportional to 1,071,377.65, 1,478,519.12 and 587,987.78 is: 811,432.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,377.65 : 1,478,519.12 = 587,987.78 : x
  2. Step 2: Convert to fraction form
    1,071,377.65/1,478,519.12 = 587,987.78/x
  3. Step 3: Cross multiply
    1,071,377.65x = 1,478,519.12 × 587,987.78
  4. Step 4: Simplify right side
    1,071,377.65x = 869,351,169,133.73
  5. Step 5: Solve for x
    x = 869,351,169,133.73/1,071,377.65
  6. Step 6: Final answer
    x = 811,432.99

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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.