Home / 1,332,007.20-1,998,010.80-763,387.20

Finding the Fourth Proportional to 1,332,007.20, 1,998,010.80 and 763,387.20

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Solution

The fourth proportional to 1,332,007.20, 1,998,010.80 and 763,387.20 is: 1,145,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,007.20 : 1,998,010.80 = 763,387.20 : x
  2. Step 2: Convert to fraction form
    1,332,007.20/1,998,010.80 = 763,387.20/x
  3. Step 3: Cross multiply
    1,332,007.20x = 1,998,010.80 × 763,387.20
  4. Step 4: Simplify right side
    1,332,007.20x = 1,525,255,870,181.76
  5. Step 5: Solve for x
    x = 1,525,255,870,181.76/1,332,007.20
  6. Step 6: Final answer
    x = 1,145,080.80

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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.