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Finding the Fourth Proportional to 556,961.20, 768,585.84 and 302,306.96

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Solution

The fourth proportional to 556,961.20, 768,585.84 and 302,306.96 is: 417,172.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,961.20 : 768,585.84 = 302,306.96 : x
  2. Step 2: Convert to fraction form
    556,961.20/768,585.84 = 302,306.96/x
  3. Step 3: Cross multiply
    556,961.20x = 768,585.84 × 302,306.96
  4. Step 4: Simplify right side
    556,961.20x = 232,348,848,789.45
  5. Step 5: Solve for x
    x = 232,348,848,789.45/556,961.20
  6. Step 6: Final answer
    x = 417,172.41

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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.