Home / 578,638.20-867,957.30-204,612.60

Finding the Fourth Proportional to 578,638.20, 867,957.30 and 204,612.60

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Solution

The fourth proportional to 578,638.20, 867,957.30 and 204,612.60 is: 306,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,638.20 : 867,957.30 = 204,612.60 : x
  2. Step 2: Convert to fraction form
    578,638.20/867,957.30 = 204,612.60/x
  3. Step 3: Cross multiply
    578,638.20x = 867,957.30 × 204,612.60
  4. Step 4: Simplify right side
    578,638.20x = 177,594,999,841.98
  5. Step 5: Solve for x
    x = 177,594,999,841.98/578,638.20
  6. Step 6: Final answer
    x = 306,918.90

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Similar ratio
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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.