Home / 778,069.80-1,167,104.70-217,104.30

Finding the Fourth Proportional to 778,069.80, 1,167,104.70 and 217,104.30

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Solution

The fourth proportional to 778,069.80, 1,167,104.70 and 217,104.30 is: 325,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,069.80 : 1,167,104.70 = 217,104.30 : x
  2. Step 2: Convert to fraction form
    778,069.80/1,167,104.70 = 217,104.30/x
  3. Step 3: Cross multiply
    778,069.80x = 1,167,104.70 × 217,104.30
  4. Step 4: Simplify right side
    778,069.80x = 253,383,448,920.21
  5. Step 5: Solve for x
    x = 253,383,448,920.21/778,069.80
  6. Step 6: Final answer
    x = 325,656.45

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Double scale
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Similar ratio
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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.