Home / 868,838.87-1,198,994.32-486,865.66

Finding the Fourth Proportional to 868,838.87, 1,198,994.32 and 486,865.66

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Solution

The fourth proportional to 868,838.87, 1,198,994.32 and 486,865.66 is: 671,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,838.87 : 1,198,994.32 = 486,865.66 : x
  2. Step 2: Convert to fraction form
    868,838.87/1,198,994.32 = 486,865.66/x
  3. Step 3: Cross multiply
    868,838.87x = 1,198,994.32 × 486,865.66
  4. Step 4: Simplify right side
    868,838.87x = 583,749,156,728.40
  5. Step 5: Solve for x
    x = 583,749,156,728.40/868,838.87
  6. Step 6: Final answer
    x = 671,872.74

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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.