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Finding the Fourth Proportional to 968,696.78, 1,453,943.02 and 489,261.30

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Solution

The fourth proportional to 968,696.78, 1,453,943.02 and 489,261.30 is: 734,345.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,696.78 : 1,453,943.02 = 489,261.30 : x
  2. Step 2: Convert to fraction form
    968,696.78/1,453,943.02 = 489,261.30/x
  3. Step 3: Cross multiply
    968,696.78x = 1,453,943.02 × 489,261.30
  4. Step 4: Simplify right side
    968,696.78x = 711,358,052,091.13
  5. Step 5: Solve for x
    x = 711,358,052,091.13/968,696.78
  6. Step 6: Final answer
    x = 734,345.43

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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.