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Finding the Fourth Proportional to 876,801, 1,209,985.38 and 474,393

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Solution

The fourth proportional to 876,801, 1,209,985.38 and 474,393 is: 654,662.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,801 : 1,209,985.38 = 474,393 : x
  2. Step 2: Convert to fraction form
    876,801/1,209,985.38 = 474,393/x
  3. Step 3: Cross multiply
    876,801x = 1,209,985.38 × 474,393
  4. Step 4: Simplify right side
    876,801x = 574,008,594,374.34
  5. Step 5: Solve for x
    x = 574,008,594,374.34/876,801
  6. Step 6: Final answer
    x = 654,662.34

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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.