Home / 721,919.59-1,083,125.42-216,492.95

Finding the Fourth Proportional to 721,919.59, 1,083,125.42 and 216,492.95

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Solution

The fourth proportional to 721,919.59, 1,083,125.42 and 216,492.95 is: 324,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,919.59 : 1,083,125.42 = 216,492.95 : x
  2. Step 2: Convert to fraction form
    721,919.59/1,083,125.42 = 216,492.95/x
  3. Step 3: Cross multiply
    721,919.59x = 1,083,125.42 × 216,492.95
  4. Step 4: Simplify right side
    721,919.59x = 234,489,019,832.99
  5. Step 5: Solve for x
    x = 234,489,019,832.99/721,919.59
  6. Step 6: Final answer
    x = 324,813.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.