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Finding the Fourth Proportional to 561,750.20, 840,875.70 and 404,286.20

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Solution

The fourth proportional to 561,750.20, 840,875.70 and 404,286.20 is: 605,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,750.20 : 840,875.70 = 404,286.20 : x
  2. Step 2: Convert to fraction form
    561,750.20/840,875.70 = 404,286.20/x
  3. Step 3: Cross multiply
    561,750.20x = 840,875.70 × 404,286.20
  4. Step 4: Simplify right side
    561,750.20x = 339,954,441,425.34
  5. Step 5: Solve for x
    x = 339,954,441,425.34/561,750.20
  6. Step 6: Final answer
    x = 605,170.13

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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.