Home / 813,520.31-1,122,540.12-450,944.06

Finding the Fourth Proportional to 813,520.31, 1,122,540.12 and 450,944.06

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Solution

The fourth proportional to 813,520.31, 1,122,540.12 and 450,944.06 is: 622,237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,520.31 : 1,122,540.12 = 450,944.06 : x
  2. Step 2: Convert to fraction form
    813,520.31/1,122,540.12 = 450,944.06/x
  3. Step 3: Cross multiply
    813,520.31x = 1,122,540.12 × 450,944.06
  4. Step 4: Simplify right side
    813,520.31x = 506,202,793,612.99
  5. Step 5: Solve for x
    x = 506,202,793,612.99/813,520.31
  6. Step 6: Final answer
    x = 622,237.44

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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.