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Finding the Fourth Proportional to 490,670.67, 736,070.40 and 170,787.90

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Solution

The fourth proportional to 490,670.67, 736,070.40 and 170,787.90 is: 256,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,670.67 : 736,070.40 = 170,787.90 : x
  2. Step 2: Convert to fraction form
    490,670.67/736,070.40 = 170,787.90/x
  3. Step 3: Cross multiply
    490,670.67x = 736,070.40 × 170,787.90
  4. Step 4: Simplify right side
    490,670.67x = 125,711,917,868.16
  5. Step 5: Solve for x
    x = 125,711,917,868.16/490,670.67
  6. Step 6: Final answer
    x = 256,204.26

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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.