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Finding the Fourth Proportional to 559,434.60, 838,163.70 and 540,934.20

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Solution

The fourth proportional to 559,434.60, 838,163.70 and 540,934.20 is: 810,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,434.60 : 838,163.70 = 540,934.20 : x
  2. Step 2: Convert to fraction form
    559,434.60/838,163.70 = 540,934.20/x
  3. Step 3: Cross multiply
    559,434.60x = 838,163.70 × 540,934.20
  4. Step 4: Simplify right side
    559,434.60x = 453,391,410,528.54
  5. Step 5: Solve for x
    x = 453,391,410,528.54/559,434.60
  6. Step 6: Final answer
    x = 810,445.78

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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.