Home / 1,387,839.24-1,915,746.66-904,521.96

Finding the Fourth Proportional to 1,387,839.24, 1,915,746.66 and 904,521.96

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Solution

The fourth proportional to 1,387,839.24, 1,915,746.66 and 904,521.96 is: 1,248,584.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,839.24 : 1,915,746.66 = 904,521.96 : x
  2. Step 2: Convert to fraction form
    1,387,839.24/1,915,746.66 = 904,521.96/x
  3. Step 3: Cross multiply
    1,387,839.24x = 1,915,746.66 × 904,521.96
  4. Step 4: Simplify right side
    1,387,839.24x = 1,732,834,923,766.65
  5. Step 5: Solve for x
    x = 1,732,834,923,766.65/1,387,839.24
  6. Step 6: Final answer
    x = 1,248,584.76

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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.