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Finding the Fourth Proportional to 551,390.20, 827,085.30 and 270,849.40

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Solution

The fourth proportional to 551,390.20, 827,085.30 and 270,849.40 is: 406,274.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,390.20 : 827,085.30 = 270,849.40 : x
  2. Step 2: Convert to fraction form
    551,390.20/827,085.30 = 270,849.40/x
  3. Step 3: Cross multiply
    551,390.20x = 827,085.30 × 270,849.40
  4. Step 4: Simplify right side
    551,390.20x = 224,015,557,253.82
  5. Step 5: Solve for x
    x = 224,015,557,253.82/551,390.20
  6. Step 6: Final answer
    x = 406,274.10

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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.