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Finding the Fourth Proportional to 868,452.31, 1,198,451.04 and 486,492.76

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Solution

The fourth proportional to 868,452.31, 1,198,451.04 and 486,492.76 is: 671,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,452.31 : 1,198,451.04 = 486,492.76 : x
  2. Step 2: Convert to fraction form
    868,452.31/1,198,451.04 = 486,492.76/x
  3. Step 3: Cross multiply
    868,452.31x = 1,198,451.04 × 486,492.76
  4. Step 4: Simplify right side
    868,452.31x = 583,037,754,174.47
  5. Step 5: Solve for x
    x = 583,037,754,174.47/868,452.31
  6. Step 6: Final answer
    x = 671,352.64

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1.5x scale

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.