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Finding the Fourth Proportional to 497,765.40, 746,650.80 and 123,788.40

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Solution

The fourth proportional to 497,765.40, 746,650.80 and 123,788.40 is: 185,683.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,765.40 : 746,650.80 = 123,788.40 : x
  2. Step 2: Convert to fraction form
    497,765.40/746,650.80 = 123,788.40/x
  3. Step 3: Cross multiply
    497,765.40x = 746,650.80 × 123,788.40
  4. Step 4: Simplify right side
    497,765.40x = 92,426,707,890.72
  5. Step 5: Solve for x
    x = 92,426,707,890.72/497,765.40
  6. Step 6: Final answer
    x = 185,683.27

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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.