Home / 868,718.32-1,198,830.48-486,747.83

Finding the Fourth Proportional to 868,718.32, 1,198,830.48 and 486,747.83

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Solution

The fourth proportional to 868,718.32, 1,198,830.48 and 486,747.83 is: 671,711.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,718.32 : 1,198,830.48 = 486,747.83 : x
  2. Step 2: Convert to fraction form
    868,718.32/1,198,830.48 = 486,747.83/x
  3. Step 3: Cross multiply
    868,718.32x = 1,198,830.48 × 486,747.83
  4. Step 4: Simplify right side
    868,718.32x = 583,528,135,849.63
  5. Step 5: Solve for x
    x = 583,528,135,849.63/868,718.32
  6. Step 6: Final answer
    x = 671,711.56

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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.