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Finding the Fourth Proportional to 557,016.03, 768,808.53 and 353,348.01

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Solution

The fourth proportional to 557,016.03, 768,808.53 and 353,348.01 is: 487,700.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,016.03 : 768,808.53 = 353,348.01 : x
  2. Step 2: Convert to fraction form
    557,016.03/768,808.53 = 353,348.01/x
  3. Step 3: Cross multiply
    557,016.03x = 768,808.53 × 353,348.01
  4. Step 4: Simplify right side
    557,016.03x = 271,656,964,146.53
  5. Step 5: Solve for x
    x = 271,656,964,146.53/557,016.03
  6. Step 6: Final answer
    x = 487,700.44

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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.