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Finding the Fourth Proportional to 916,644, 1,375,003.26 and 436,625.04

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Solution

The fourth proportional to 916,644, 1,375,003.26 and 436,625.04 is: 654,955.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,644 : 1,375,003.26 = 436,625.04 : x
  2. Step 2: Convert to fraction form
    916,644/1,375,003.26 = 436,625.04/x
  3. Step 3: Cross multiply
    916,644x = 1,375,003.26 × 436,625.04
  4. Step 4: Simplify right side
    916,644x = 600,360,853,397.63
  5. Step 5: Solve for x
    x = 600,360,853,397.63/916,644
  6. Step 6: Final answer
    x = 654,955.31

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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.