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Finding the Fourth Proportional to 474,071.58, 654,206.22 and 280,489.28

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Solution

The fourth proportional to 474,071.58, 654,206.22 and 280,489.28 is: 387,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,071.58 : 654,206.22 = 280,489.28 : x
  2. Step 2: Convert to fraction form
    474,071.58/654,206.22 = 280,489.28/x
  3. Step 3: Cross multiply
    474,071.58x = 654,206.22 × 280,489.28
  4. Step 4: Simplify right side
    474,071.58x = 183,497,828,348.29
  5. Step 5: Solve for x
    x = 183,497,828,348.29/474,071.58
  6. Step 6: Final answer
    x = 387,067.77

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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.