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Finding the Fourth Proportional to 561,737.20, 840,856.20 and 404,273.20

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Solution

The fourth proportional to 561,737.20, 840,856.20 and 404,273.20 is: 605,150.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,737.20 : 840,856.20 = 404,273.20 : x
  2. Step 2: Convert to fraction form
    561,737.20/840,856.20 = 404,273.20/x
  3. Step 3: Cross multiply
    561,737.20x = 840,856.20 × 404,273.20
  4. Step 4: Simplify right side
    561,737.20x = 339,935,626,713.84
  5. Step 5: Solve for x
    x = 339,935,626,713.84/561,737.20
  6. Step 6: Final answer
    x = 605,150.64

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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.