Home / 778,377.62-1,167,469.82-209,803.16

Finding the Fourth Proportional to 778,377.62, 1,167,469.82 and 209,803.16

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Solution

The fourth proportional to 778,377.62, 1,167,469.82 and 209,803.16 is: 314,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,377.62 : 1,167,469.82 = 209,803.16 : x
  2. Step 2: Convert to fraction form
    778,377.62/1,167,469.82 = 209,803.16/x
  3. Step 3: Cross multiply
    778,377.62x = 1,167,469.82 × 209,803.16
  4. Step 4: Simplify right side
    778,377.62x = 244,938,857,440.63
  5. Step 5: Solve for x
    x = 244,938,857,440.63/778,377.62
  6. Step 6: Final answer
    x = 314,678.70

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1.5x scale

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.