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Finding the Third Proportional to 574,640 and 909,468

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Solution

The third proportional to 574,640 and 909,468 is: 1,439,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,640 : 909,468 = 909,468 : x
  2. Step 2: Convert to fraction form
    574,640/909,468 = 909,468/x
  3. Step 3: Cross multiply
    574,640x = 909,468 × 909,468
  4. Step 4: Simplify right side
    574,640x = 827,132,043,024
  5. Step 5: Solve for x
    x = 827,132,043,024/574,640
  6. Step 6: Final answer
    x = 1,439,391.69

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.