Home / 1,118,944.88-1,678,415.78-519,578.30

Finding the Fourth Proportional to 1,118,944.88, 1,678,415.78 and 519,578.30

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Solution

The fourth proportional to 1,118,944.88, 1,678,415.78 and 519,578.30 is: 779,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,944.88 : 1,678,415.78 = 519,578.30 : x
  2. Step 2: Convert to fraction form
    1,118,944.88/1,678,415.78 = 519,578.30/x
  3. Step 3: Cross multiply
    1,118,944.88x = 1,678,415.78 × 519,578.30
  4. Step 4: Simplify right side
    1,118,944.88x = 872,068,417,665.57
  5. Step 5: Solve for x
    x = 872,068,417,665.57/1,118,944.88
  6. Step 6: Final answer
    x = 779,366.73

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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.