Home / 1,088,862.40-1,632,127.20-489,721.60

Finding the Fourth Proportional to 1,088,862.40, 1,632,127.20 and 489,721.60

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Solution

The fourth proportional to 1,088,862.40, 1,632,127.20 and 489,721.60 is: 734,057.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,862.40 : 1,632,127.20 = 489,721.60 : x
  2. Step 2: Convert to fraction form
    1,088,862.40/1,632,127.20 = 489,721.60/x
  3. Step 3: Cross multiply
    1,088,862.40x = 1,632,127.20 × 489,721.60
  4. Step 4: Simplify right side
    1,088,862.40x = 799,287,943,787.52
  5. Step 5: Solve for x
    x = 799,287,943,787.52/1,088,862.40
  6. Step 6: Final answer
    x = 734,057.81

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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.