Home / 1,040,070.30-1,560,105.45-970,086.30

Finding the Fourth Proportional to 1,040,070.30, 1,560,105.45 and 970,086.30

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Solution

The fourth proportional to 1,040,070.30, 1,560,105.45 and 970,086.30 is: 1,455,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,070.30 : 1,560,105.45 = 970,086.30 : x
  2. Step 2: Convert to fraction form
    1,040,070.30/1,560,105.45 = 970,086.30/x
  3. Step 3: Cross multiply
    1,040,070.30x = 1,560,105.45 × 970,086.30
  4. Step 4: Simplify right side
    1,040,070.30x = 1,513,436,923,600.34
  5. Step 5: Solve for x
    x = 1,513,436,923,600.34/1,040,070.30
  6. Step 6: Final answer
    x = 1,455,129.45

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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.