Home / 1,098,051.40-1,647,077.10-388,102.60

Finding the Fourth Proportional to 1,098,051.40, 1,647,077.10 and 388,102.60

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Solution

The fourth proportional to 1,098,051.40, 1,647,077.10 and 388,102.60 is: 582,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,051.40 : 1,647,077.10 = 388,102.60 : x
  2. Step 2: Convert to fraction form
    1,098,051.40/1,647,077.10 = 388,102.60/x
  3. Step 3: Cross multiply
    1,098,051.40x = 1,647,077.10 × 388,102.60
  4. Step 4: Simplify right side
    1,098,051.40x = 639,234,904,910.46
  5. Step 5: Solve for x
    x = 639,234,904,910.46/1,098,051.40
  6. Step 6: Final answer
    x = 582,153.90

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Double scale
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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.