Home / 972,138.20-1,458,207.30-340,824.20

Finding the Fourth Proportional to 972,138.20, 1,458,207.30 and 340,824.20

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Solution

The fourth proportional to 972,138.20, 1,458,207.30 and 340,824.20 is: 511,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,138.20 : 1,458,207.30 = 340,824.20 : x
  2. Step 2: Convert to fraction form
    972,138.20/1,458,207.30 = 340,824.20/x
  3. Step 3: Cross multiply
    972,138.20x = 1,458,207.30 × 340,824.20
  4. Step 4: Simplify right side
    972,138.20x = 496,992,336,456.66
  5. Step 5: Solve for x
    x = 496,992,336,456.66/972,138.20
  6. Step 6: Final answer
    x = 511,236.30

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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.