Home / 1,331,437.60-1,996,959.52-489,792.48

Finding the Fourth Proportional to 1,331,437.60, 1,996,959.52 and 489,792.48

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Solution

The fourth proportional to 1,331,437.60, 1,996,959.52 and 489,792.48 is: 734,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,437.60 : 1,996,959.52 = 489,792.48 : x
  2. Step 2: Convert to fraction form
    1,331,437.60/1,996,959.52 = 489,792.48/x
  3. Step 3: Cross multiply
    1,331,437.60x = 1,996,959.52 × 489,792.48
  4. Step 4: Simplify right side
    1,331,437.60x = 978,095,755,760.41
  5. Step 5: Solve for x
    x = 978,095,755,760.41/1,331,437.60
  6. Step 6: Final answer
    x = 734,616.29

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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.