Home / 769,607.20-1,154,410.80-629,639.20

Finding the Fourth Proportional to 769,607.20, 1,154,410.80 and 629,639.20

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Solution

The fourth proportional to 769,607.20, 1,154,410.80 and 629,639.20 is: 944,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,607.20 : 1,154,410.80 = 629,639.20 : x
  2. Step 2: Convert to fraction form
    769,607.20/1,154,410.80 = 629,639.20/x
  3. Step 3: Cross multiply
    769,607.20x = 1,154,410.80 × 629,639.20
  4. Step 4: Simplify right side
    769,607.20x = 726,862,292,583.36
  5. Step 5: Solve for x
    x = 726,862,292,583.36/769,607.20
  6. Step 6: Final answer
    x = 944,458.80

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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.