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Finding the Fourth Proportional to 834,120, 1,151,079.12 and 452,136.96

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Solution

The fourth proportional to 834,120, 1,151,079.12 and 452,136.96 is: 623,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,120 : 1,151,079.12 = 452,136.96 : x
  2. Step 2: Convert to fraction form
    834,120/1,151,079.12 = 452,136.96/x
  3. Step 3: Cross multiply
    834,120x = 1,151,079.12 × 452,136.96
  4. Step 4: Simplify right side
    834,120x = 520,445,414,036.28
  5. Step 5: Solve for x
    x = 520,445,414,036.28/834,120
  6. Step 6: Final answer
    x = 623,945.49

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Double scale
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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.