Home / 1,118,976.88-1,678,463.78-519,610.30

Finding the Fourth Proportional to 1,118,976.88, 1,678,463.78 and 519,610.30

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Solution

The fourth proportional to 1,118,976.88, 1,678,463.78 and 519,610.30 is: 779,414.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,976.88 : 1,678,463.78 = 519,610.30 : x
  2. Step 2: Convert to fraction form
    1,118,976.88/1,678,463.78 = 519,610.30/x
  3. Step 3: Cross multiply
    1,118,976.88x = 1,678,463.78 × 519,610.30
  4. Step 4: Simplify right side
    1,118,976.88x = 872,147,068,264.93
  5. Step 5: Solve for x
    x = 872,147,068,264.93/1,118,976.88
  6. Step 6: Final answer
    x = 779,414.73

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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.