Home / 840,822.20-1,259,159.70-558,812.60

Finding the Fourth Proportional to 840,822.20, 1,259,159.70 and 558,812.60

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Solution

The fourth proportional to 840,822.20, 1,259,159.70 and 558,812.60 is: 836,840.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,822.20 : 1,259,159.70 = 558,812.60 : x
  2. Step 2: Convert to fraction form
    840,822.20/1,259,159.70 = 558,812.60/x
  3. Step 3: Cross multiply
    840,822.20x = 1,259,159.70 × 558,812.60
  4. Step 4: Simplify right side
    840,822.20x = 703,634,305,772.22
  5. Step 5: Solve for x
    x = 703,634,305,772.22/840,822.20
  6. Step 6: Final answer
    x = 836,840.78

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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.