Home / 769,398.72-1,061,902.08-447,295.65

Finding the Fourth Proportional to 769,398.72, 1,061,902.08 and 447,295.65

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Solution

The fourth proportional to 769,398.72, 1,061,902.08 and 447,295.65 is: 617,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,398.72 : 1,061,902.08 = 447,295.65 : x
  2. Step 2: Convert to fraction form
    769,398.72/1,061,902.08 = 447,295.65/x
  3. Step 3: Cross multiply
    769,398.72x = 1,061,902.08 × 447,295.65
  4. Step 4: Simplify right side
    769,398.72x = 474,984,178,873.47
  5. Step 5: Solve for x
    x = 474,984,178,873.47/769,398.72
  6. Step 6: Final answer
    x = 617,344.65

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Double scale
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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.