Home / 752,654.40-1,128,981.60-610,936.80

Finding the Fourth Proportional to 752,654.40, 1,128,981.60 and 610,936.80

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Solution

The fourth proportional to 752,654.40, 1,128,981.60 and 610,936.80 is: 916,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,654.40 : 1,128,981.60 = 610,936.80 : x
  2. Step 2: Convert to fraction form
    752,654.40/1,128,981.60 = 610,936.80/x
  3. Step 3: Cross multiply
    752,654.40x = 1,128,981.60 × 610,936.80
  4. Step 4: Simplify right side
    752,654.40x = 689,736,405,962.88
  5. Step 5: Solve for x
    x = 689,736,405,962.88/752,654.40
  6. Step 6: Final answer
    x = 916,405.20

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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.