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Finding the Fourth Proportional to 486,067.30, 670,665.49 and 282,000.02

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Solution

The fourth proportional to 486,067.30, 670,665.49 and 282,000.02 is: 389,097.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,067.30 : 670,665.49 = 282,000.02 : x
  2. Step 2: Convert to fraction form
    486,067.30/670,665.49 = 282,000.02/x
  3. Step 3: Cross multiply
    486,067.30x = 670,665.49 × 282,000.02
  4. Step 4: Simplify right side
    486,067.30x = 189,127,677,534.98
  5. Step 5: Solve for x
    x = 189,127,677,534.98/486,067.30
  6. Step 6: Final answer
    x = 389,097.72

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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.