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Finding the Fourth Proportional to 453,008.52, 679,594.80 and 186,621

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Solution

The fourth proportional to 453,008.52, 679,594.80 and 186,621 is: 279,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,008.52 : 679,594.80 = 186,621 : x
  2. Step 2: Convert to fraction form
    453,008.52/679,594.80 = 186,621/x
  3. Step 3: Cross multiply
    453,008.52x = 679,594.80 × 186,621
  4. Step 4: Simplify right side
    453,008.52x = 126,826,661,170.80
  5. Step 5: Solve for x
    x = 126,826,661,170.80/453,008.52
  6. Step 6: Final answer
    x = 279,965.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.