Home / 820,376.65-1,132,117.62-457,796.65

Finding the Fourth Proportional to 820,376.65, 1,132,117.62 and 457,796.65

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Solution

The fourth proportional to 820,376.65, 1,132,117.62 and 457,796.65 is: 631,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,376.65 : 1,132,117.62 = 457,796.65 : x
  2. Step 2: Convert to fraction form
    820,376.65/1,132,117.62 = 457,796.65/x
  3. Step 3: Cross multiply
    820,376.65x = 1,132,117.62 × 457,796.65
  4. Step 4: Simplify right side
    820,376.65x = 518,279,653,841.97
  5. Step 5: Solve for x
    x = 518,279,653,841.97/820,376.65
  6. Step 6: Final answer
    x = 631,758.17

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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.