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Finding the Fourth Proportional to 552,002.80, 761,844.54 and 310,305.28

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Solution

The fourth proportional to 552,002.80, 761,844.54 and 310,305.28 is: 428,266.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,002.80 : 761,844.54 = 310,305.28 : x
  2. Step 2: Convert to fraction form
    552,002.80/761,844.54 = 310,305.28/x
  3. Step 3: Cross multiply
    552,002.80x = 761,844.54 × 310,305.28
  4. Step 4: Simplify right side
    552,002.80x = 236,404,383,301.17
  5. Step 5: Solve for x
    x = 236,404,383,301.17/552,002.80
  6. Step 6: Final answer
    x = 428,266.64

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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.