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Finding the Fourth Proportional to 633,066.66, 873,691.38 and 378,412.38

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Solution

The fourth proportional to 633,066.66, 873,691.38 and 378,412.38 is: 522,244.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,066.66 : 873,691.38 = 378,412.38 : x
  2. Step 2: Convert to fraction form
    633,066.66/873,691.38 = 378,412.38/x
  3. Step 3: Cross multiply
    633,066.66x = 873,691.38 × 378,412.38
  4. Step 4: Simplify right side
    633,066.66x = 330,615,634,491.28
  5. Step 5: Solve for x
    x = 330,615,634,491.28/633,066.66
  6. Step 6: Final answer
    x = 522,244.58

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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.