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Finding the Fourth Proportional to 497,843.26, 745,436.28 and 260,687.40

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Solution

The fourth proportional to 497,843.26, 745,436.28 and 260,687.40 is: 390,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,843.26 : 745,436.28 = 260,687.40 : x
  2. Step 2: Convert to fraction form
    497,843.26/745,436.28 = 260,687.40/x
  3. Step 3: Cross multiply
    497,843.26x = 745,436.28 × 260,687.40
  4. Step 4: Simplify right side
    497,843.26x = 194,325,845,698.87
  5. Step 5: Solve for x
    x = 194,325,845,698.87/497,843.26
  6. Step 6: Final answer
    x = 390,335.40

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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.