Home / 1,440,079.38-1,987,180.70-828,069.30

Finding the Fourth Proportional to 1,440,079.38, 1,987,180.70 and 828,069.30

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Solution

The fourth proportional to 1,440,079.38, 1,987,180.70 and 828,069.30 is: 1,142,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,079.38 : 1,987,180.70 = 828,069.30 : x
  2. Step 2: Convert to fraction form
    1,440,079.38/1,987,180.70 = 828,069.30/x
  3. Step 3: Cross multiply
    1,440,079.38x = 1,987,180.70 × 828,069.30
  4. Step 4: Simplify right side
    1,440,079.38x = 1,645,523,327,082.16
  5. Step 5: Solve for x
    x = 1,645,523,327,082.16/1,440,079.38
  6. Step 6: Final answer
    x = 1,142,661.54

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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.