Home / 868,465.72-1,198,461.18-486,489.88

Finding the Fourth Proportional to 868,465.72, 1,198,461.18 and 486,489.88

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Solution

The fourth proportional to 868,465.72, 1,198,461.18 and 486,489.88 is: 671,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,465.72 : 1,198,461.18 = 486,489.88 : x
  2. Step 2: Convert to fraction form
    868,465.72/1,198,461.18 = 486,489.88/x
  3. Step 3: Cross multiply
    868,465.72x = 1,198,461.18 × 486,489.88
  4. Step 4: Simplify right side
    868,465.72x = 583,039,235,642.86
  5. Step 5: Solve for x
    x = 583,039,235,642.86/868,465.72
  6. Step 6: Final answer
    x = 671,343.98

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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.