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Finding the Fourth Proportional to 912,627, 1,368,940.68 and 247,779

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Solution

The fourth proportional to 912,627, 1,368,940.68 and 247,779 is: 371,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,627 : 1,368,940.68 = 247,779 : x
  2. Step 2: Convert to fraction form
    912,627/1,368,940.68 = 247,779/x
  3. Step 3: Cross multiply
    912,627x = 1,368,940.68 × 247,779
  4. Step 4: Simplify right side
    912,627x = 339,194,752,749.72
  5. Step 5: Solve for x
    x = 339,194,752,749.72/912,627
  6. Step 6: Final answer
    x = 371,668.55

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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.