Home / 778,872.30-1,168,308.45-329,443.80

Finding the Fourth Proportional to 778,872.30, 1,168,308.45 and 329,443.80

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Solution

The fourth proportional to 778,872.30, 1,168,308.45 and 329,443.80 is: 494,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,872.30 : 1,168,308.45 = 329,443.80 : x
  2. Step 2: Convert to fraction form
    778,872.30/1,168,308.45 = 329,443.80/x
  3. Step 3: Cross multiply
    778,872.30x = 1,168,308.45 × 329,443.80
  4. Step 4: Simplify right side
    778,872.30x = 384,891,975,340.11
  5. Step 5: Solve for x
    x = 384,891,975,340.11/778,872.30
  6. Step 6: Final answer
    x = 494,165.70

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Double scale
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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.