Home / 1,131,149.18-1,560,893.07-665,929.20

Finding the Fourth Proportional to 1,131,149.18, 1,560,893.07 and 665,929.20

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Solution

The fourth proportional to 1,131,149.18, 1,560,893.07 and 665,929.20 is: 918,927.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,149.18 : 1,560,893.07 = 665,929.20 : x
  2. Step 2: Convert to fraction form
    1,131,149.18/1,560,893.07 = 665,929.20/x
  3. Step 3: Cross multiply
    1,131,149.18x = 1,560,893.07 × 665,929.20
  4. Step 4: Simplify right side
    1,131,149.18x = 1,039,444,273,390.64
  5. Step 5: Solve for x
    x = 1,039,444,273,390.64/1,131,149.18
  6. Step 6: Final answer
    x = 918,927.66

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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.