Home / 1,178,872.98-1,768,654.54-380,138.46

Finding the Fourth Proportional to 1,178,872.98, 1,768,654.54 and 380,138.46

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Solution

The fourth proportional to 1,178,872.98, 1,768,654.54 and 380,138.46 is: 570,318.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,872.98 : 1,768,654.54 = 380,138.46 : x
  2. Step 2: Convert to fraction form
    1,178,872.98/1,768,654.54 = 380,138.46/x
  3. Step 3: Cross multiply
    1,178,872.98x = 1,768,654.54 × 380,138.46
  4. Step 4: Simplify right side
    1,178,872.98x = 672,333,613,107.61
  5. Step 5: Solve for x
    x = 672,333,613,107.61/1,178,872.98
  6. Step 6: Final answer
    x = 570,318.96

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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.