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Finding the Fourth Proportional to 911,812.48, 1,258,475 and 601,169.60

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Solution

The fourth proportional to 911,812.48, 1,258,475 and 601,169.60 is: 829,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,812.48 : 1,258,475 = 601,169.60 : x
  2. Step 2: Convert to fraction form
    911,812.48/1,258,475 = 601,169.60/x
  3. Step 3: Cross multiply
    911,812.48x = 1,258,475 × 601,169.60
  4. Step 4: Simplify right side
    911,812.48x = 756,556,912,360
  5. Step 5: Solve for x
    x = 756,556,912,360/911,812.48
  6. Step 6: Final answer
    x = 829,728.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.