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Finding the Fourth Proportional to 813,393, 1,122,480.18 and 450,817.56

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Solution

The fourth proportional to 813,393, 1,122,480.18 and 450,817.56 is: 622,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,393 : 1,122,480.18 = 450,817.56 : x
  2. Step 2: Convert to fraction form
    813,393/1,122,480.18 = 450,817.56/x
  3. Step 3: Cross multiply
    813,393x = 1,122,480.18 × 450,817.56
  4. Step 4: Simplify right side
    813,393x = 506,033,775,895.96
  5. Step 5: Solve for x
    x = 506,033,775,895.96/813,393
  6. Step 6: Final answer
    x = 622,127.04

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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.