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Finding the Fourth Proportional to 453,081.80, 625,348.01 and 287,402.60

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Solution

The fourth proportional to 453,081.80, 625,348.01 and 287,402.60 is: 396,675.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,081.80 : 625,348.01 = 287,402.60 : x
  2. Step 2: Convert to fraction form
    453,081.80/625,348.01 = 287,402.60/x
  3. Step 3: Cross multiply
    453,081.80x = 625,348.01 × 287,402.60
  4. Step 4: Simplify right side
    453,081.80x = 179,726,641,570.59
  5. Step 5: Solve for x
    x = 179,726,641,570.59/453,081.80
  6. Step 6: Final answer
    x = 396,675.93

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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.