Home / 1,118,974.88-1,678,460.78-519,608.29

Finding the Fourth Proportional to 1,118,974.88, 1,678,460.78 and 519,608.29

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Solution

The fourth proportional to 1,118,974.88, 1,678,460.78 and 519,608.29 is: 779,411.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,974.88 : 1,678,460.78 = 519,608.29 : x
  2. Step 2: Convert to fraction form
    1,118,974.88/1,678,460.78 = 519,608.29/x
  3. Step 3: Cross multiply
    1,118,974.88x = 1,678,460.78 × 519,608.29
  4. Step 4: Simplify right side
    1,118,974.88x = 872,142,135,727.87
  5. Step 5: Solve for x
    x = 872,142,135,727.87/1,118,974.88
  6. Step 6: Final answer
    x = 779,411.72

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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.