Home / 1,098,029.28-1,647,176.80-387,912

Finding the Fourth Proportional to 1,098,029.28, 1,647,176.80 and 387,912

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Solution

The fourth proportional to 1,098,029.28, 1,647,176.80 and 387,912 is: 581,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,029.28 : 1,647,176.80 = 387,912 : x
  2. Step 2: Convert to fraction form
    1,098,029.28/1,647,176.80 = 387,912/x
  3. Step 3: Cross multiply
    1,098,029.28x = 1,647,176.80 × 387,912
  4. Step 4: Simplify right side
    1,098,029.28x = 638,959,646,841.60
  5. Step 5: Solve for x
    x = 638,959,646,841.60/1,098,029.28
  6. Step 6: Final answer
    x = 581,914.94

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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.