Home / 1,188,721.50-1,783,076.09-290,167.95

Finding the Fourth Proportional to 1,188,721.50, 1,783,076.09 and 290,167.95

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Solution

The fourth proportional to 1,188,721.50, 1,783,076.09 and 290,167.95 is: 435,250.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,721.50 : 1,783,076.09 = 290,167.95 : x
  2. Step 2: Convert to fraction form
    1,188,721.50/1,783,076.09 = 290,167.95/x
  3. Step 3: Cross multiply
    1,188,721.50x = 1,783,076.09 × 290,167.95
  4. Step 4: Simplify right side
    1,188,721.50x = 517,391,532,278.48
  5. Step 5: Solve for x
    x = 517,391,532,278.48/1,188,721.50
  6. Step 6: Final answer
    x = 435,250.42

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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.