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Finding the Fourth Proportional to 1,738,230.30, 2,607,345.45 and 991,734.30

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Solution

The fourth proportional to 1,738,230.30, 2,607,345.45 and 991,734.30 is: 1,487,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,230.30 : 2,607,345.45 = 991,734.30 : x
  2. Step 2: Convert to fraction form
    1,738,230.30/2,607,345.45 = 991,734.30/x
  3. Step 3: Cross multiply
    1,738,230.30x = 2,607,345.45 × 991,734.30
  4. Step 4: Simplify right side
    1,738,230.30x = 2,585,793,914,713.94
  5. Step 5: Solve for x
    x = 2,585,793,914,713.94/1,738,230.30
  6. Step 6: Final answer
    x = 1,487,601.45

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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.