Home / 1,332,005.15-1,998,007.73-1,209,970.55

Finding the Fourth Proportional to 1,332,005.15, 1,998,007.73 and 1,209,970.55

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Solution

The fourth proportional to 1,332,005.15, 1,998,007.73 and 1,209,970.55 is: 1,814,955.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,005.15 : 1,998,007.73 = 1,209,970.55 : x
  2. Step 2: Convert to fraction form
    1,332,005.15/1,998,007.73 = 1,209,970.55/x
  3. Step 3: Cross multiply
    1,332,005.15x = 1,998,007.73 × 1,209,970.55
  4. Step 4: Simplify right side
    1,332,005.15x = 2,417,530,511,972.35
  5. Step 5: Solve for x
    x = 2,417,530,511,972.35/1,332,005.15
  6. Step 6: Final answer
    x = 1,814,955.83

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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.