Home / 821,117.46-1,231,671.71-334,797.70

Finding the Fourth Proportional to 821,117.46, 1,231,671.71 and 334,797.70

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Solution

The fourth proportional to 821,117.46, 1,231,671.71 and 334,797.70 is: 502,194.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,117.46 : 1,231,671.71 = 334,797.70 : x
  2. Step 2: Convert to fraction form
    821,117.46/1,231,671.71 = 334,797.70/x
  3. Step 3: Cross multiply
    821,117.46x = 1,231,671.71 × 334,797.70
  4. Step 4: Simplify right side
    821,117.46x = 412,360,853,420.88
  5. Step 5: Solve for x
    x = 412,360,853,420.88/821,117.46
  6. Step 6: Final answer
    x = 502,194.72

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Double scale
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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.