Home / 551,382.39-761,072.72-322,001.55

Finding the Fourth Proportional to 551,382.39, 761,072.72 and 322,001.55

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Solution

The fourth proportional to 551,382.39, 761,072.72 and 322,001.55 is: 444,458.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,382.39 : 761,072.72 = 322,001.55 : x
  2. Step 2: Convert to fraction form
    551,382.39/761,072.72 = 322,001.55/x
  3. Step 3: Cross multiply
    551,382.39x = 761,072.72 × 322,001.55
  4. Step 4: Simplify right side
    551,382.39x = 245,066,593,892.71
  5. Step 5: Solve for x
    x = 245,066,593,892.71/551,382.39
  6. Step 6: Final answer
    x = 444,458.51

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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.