Home / 743,366.20-1,115,049.30-210,904.60

Finding the Fourth Proportional to 743,366.20, 1,115,049.30 and 210,904.60

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Solution

The fourth proportional to 743,366.20, 1,115,049.30 and 210,904.60 is: 316,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,366.20 : 1,115,049.30 = 210,904.60 : x
  2. Step 2: Convert to fraction form
    743,366.20/1,115,049.30 = 210,904.60/x
  3. Step 3: Cross multiply
    743,366.20x = 1,115,049.30 × 210,904.60
  4. Step 4: Simplify right side
    743,366.20x = 235,169,026,596.78
  5. Step 5: Solve for x
    x = 235,169,026,596.78/743,366.20
  6. Step 6: Final answer
    x = 316,356.90

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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.