Home / 848,213.40-1,272,319.30-217,126.20

Finding the Fourth Proportional to 848,213.40, 1,272,319.30 and 217,126.20

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Solution

The fourth proportional to 848,213.40, 1,272,319.30 and 217,126.20 is: 325,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,213.40 : 1,272,319.30 = 217,126.20 : x
  2. Step 2: Convert to fraction form
    848,213.40/1,272,319.30 = 217,126.20/x
  3. Step 3: Cross multiply
    848,213.40x = 1,272,319.30 × 217,126.20
  4. Step 4: Simplify right side
    848,213.40x = 276,253,858,616.93
  5. Step 5: Solve for x
    x = 276,253,858,616.93/848,213.40
  6. Step 6: Final answer
    x = 325,689.10

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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.