Home / 1,288,544.80-1,932,817.20-932,807.20

Finding the Fourth Proportional to 1,288,544.80, 1,932,817.20 and 932,807.20

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Solution

The fourth proportional to 1,288,544.80, 1,932,817.20 and 932,807.20 is: 1,399,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,544.80 : 1,932,817.20 = 932,807.20 : x
  2. Step 2: Convert to fraction form
    1,288,544.80/1,932,817.20 = 932,807.20/x
  3. Step 3: Cross multiply
    1,288,544.80x = 1,932,817.20 × 932,807.20
  4. Step 4: Simplify right side
    1,288,544.80x = 1,802,945,800,443.84
  5. Step 5: Solve for x
    x = 1,802,945,800,443.84/1,288,544.80
  6. Step 6: Final answer
    x = 1,399,210.80

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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.