Home / 778,244.80-1,167,279.60-209,667.88

Finding the Fourth Proportional to 778,244.80, 1,167,279.60 and 209,667.88

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Solution

The fourth proportional to 778,244.80, 1,167,279.60 and 209,667.88 is: 314,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,244.80 : 1,167,279.60 = 209,667.88 : x
  2. Step 2: Convert to fraction form
    778,244.80/1,167,279.60 = 209,667.88/x
  3. Step 3: Cross multiply
    778,244.80x = 1,167,279.60 × 209,667.88
  4. Step 4: Simplify right side
    778,244.80x = 244,741,039,099.25
  5. Step 5: Solve for x
    x = 244,741,039,099.25/778,244.80
  6. Step 6: Final answer
    x = 314,478.22

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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.