Home / 1,242,572.32-1,863,639.78-331,766.11

Finding the Fourth Proportional to 1,242,572.32, 1,863,639.78 and 331,766.11

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Solution

The fourth proportional to 1,242,572.32, 1,863,639.78 and 331,766.11 is: 497,590.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,572.32 : 1,863,639.78 = 331,766.11 : x
  2. Step 2: Convert to fraction form
    1,242,572.32/1,863,639.78 = 331,766.11/x
  3. Step 3: Cross multiply
    1,242,572.32x = 1,863,639.78 × 331,766.11
  4. Step 4: Simplify right side
    1,242,572.32x = 618,292,520,251.86
  5. Step 5: Solve for x
    x = 618,292,520,251.86/1,242,572.32
  6. Step 6: Final answer
    x = 497,590.77

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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.