Home / 823,512.60-1,234,685.70-317,878.20

Finding the Fourth Proportional to 823,512.60, 1,234,685.70 and 317,878.20

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Solution

The fourth proportional to 823,512.60, 1,234,685.70 and 317,878.20 is: 476,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,512.60 : 1,234,685.70 = 317,878.20 : x
  2. Step 2: Convert to fraction form
    823,512.60/1,234,685.70 = 317,878.20/x
  3. Step 3: Cross multiply
    823,512.60x = 1,234,685.70 × 317,878.20
  4. Step 4: Simplify right side
    823,512.60x = 392,479,667,881.74
  5. Step 5: Solve for x
    x = 392,479,667,881.74/823,512.60
  6. Step 6: Final answer
    x = 476,592.18

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Double scale
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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.