Home / 921,468.62-1,382,390.86-522,287.66

Finding the Fourth Proportional to 921,468.62, 1,382,390.86 and 522,287.66

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Solution

The fourth proportional to 921,468.62, 1,382,390.86 and 522,287.66 is: 783,538.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,468.62 : 1,382,390.86 = 522,287.66 : x
  2. Step 2: Convert to fraction form
    921,468.62/1,382,390.86 = 522,287.66/x
  3. Step 3: Cross multiply
    921,468.62x = 1,382,390.86 × 522,287.66
  4. Step 4: Simplify right side
    921,468.62x = 722,005,687,474.79
  5. Step 5: Solve for x
    x = 722,005,687,474.79/921,468.62
  6. Step 6: Final answer
    x = 783,538.01

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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.