Home / 1,018,120.10-1,525,761.45-765,105.12

Finding the Fourth Proportional to 1,018,120.10, 1,525,761.45 and 765,105.12

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Solution

The fourth proportional to 1,018,120.10, 1,525,761.45 and 765,105.12 is: 1,146,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,120.10 : 1,525,761.45 = 765,105.12 : x
  2. Step 2: Convert to fraction form
    1,018,120.10/1,525,761.45 = 765,105.12/x
  3. Step 3: Cross multiply
    1,018,120.10x = 1,525,761.45 × 765,105.12
  4. Step 4: Simplify right side
    1,018,120.10x = 1,167,367,897,293.62
  5. Step 5: Solve for x
    x = 1,167,367,897,293.62/1,018,120.10
  6. Step 6: Final answer
    x = 1,146,591.55

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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.