Home / 1,239,639.20-1,859,458.80-1,029,687.20

Finding the Fourth Proportional to 1,239,639.20, 1,859,458.80 and 1,029,687.20

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Solution

The fourth proportional to 1,239,639.20, 1,859,458.80 and 1,029,687.20 is: 1,544,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,639.20 : 1,859,458.80 = 1,029,687.20 : x
  2. Step 2: Convert to fraction form
    1,239,639.20/1,859,458.80 = 1,029,687.20/x
  3. Step 3: Cross multiply
    1,239,639.20x = 1,859,458.80 × 1,029,687.20
  4. Step 4: Simplify right side
    1,239,639.20x = 1,914,660,925,287.36
  5. Step 5: Solve for x
    x = 1,914,660,925,287.36/1,239,639.20
  6. Step 6: Final answer
    x = 1,544,530.80

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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.