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Finding the Fourth Proportional to 1,947,265.29, 2,921,230.08 and 868,169.40

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Solution

The fourth proportional to 1,947,265.29, 2,921,230.08 and 868,169.40 is: 1,302,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,265.29 : 2,921,230.08 = 868,169.40 : x
  2. Step 2: Convert to fraction form
    1,947,265.29/2,921,230.08 = 868,169.40/x
  3. Step 3: Cross multiply
    1,947,265.29x = 2,921,230.08 × 868,169.40
  4. Step 4: Simplify right side
    1,947,265.29x = 2,536,122,565,815.55
  5. Step 5: Solve for x
    x = 2,536,122,565,815.55/1,947,265.29
  6. Step 6: Final answer
    x = 1,302,402.18

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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.