Home / 868,679.32-1,198,826.46-486,829.12

Finding the Fourth Proportional to 868,679.32, 1,198,826.46 and 486,829.12

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Solution

The fourth proportional to 868,679.32, 1,198,826.46 and 486,829.12 is: 671,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,679.32 : 1,198,826.46 = 486,829.12 : x
  2. Step 2: Convert to fraction form
    868,679.32/1,198,826.46 = 486,829.12/x
  3. Step 3: Cross multiply
    868,679.32x = 1,198,826.46 × 486,829.12
  4. Step 4: Simplify right side
    868,679.32x = 583,623,630,554.52
  5. Step 5: Solve for x
    x = 583,623,630,554.52/868,679.32
  6. Step 6: Final answer
    x = 671,851.65

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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.