Home / 1,788,126.80-2,680,116.60-722,469.20

Finding the Fourth Proportional to 1,788,126.80, 2,680,116.60 and 722,469.20

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Solution

The fourth proportional to 1,788,126.80, 2,680,116.60 and 722,469.20 is: 1,082,865.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,126.80 : 2,680,116.60 = 722,469.20 : x
  2. Step 2: Convert to fraction form
    1,788,126.80/2,680,116.60 = 722,469.20/x
  3. Step 3: Cross multiply
    1,788,126.80x = 2,680,116.60 × 722,469.20
  4. Step 4: Simplify right side
    1,788,126.80x = 1,936,301,695,908.72
  5. Step 5: Solve for x
    x = 1,936,301,695,908.72/1,788,126.80
  6. Step 6: Final answer
    x = 1,082,865.99

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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.