Home / 1,221,356.64-1,832,050.54-322,790.61

Finding the Fourth Proportional to 1,221,356.64, 1,832,050.54 and 322,790.61

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Solution

The fourth proportional to 1,221,356.64, 1,832,050.54 and 322,790.61 is: 484,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,356.64 : 1,832,050.54 = 322,790.61 : x
  2. Step 2: Convert to fraction form
    1,221,356.64/1,832,050.54 = 322,790.61/x
  3. Step 3: Cross multiply
    1,221,356.64x = 1,832,050.54 × 322,790.61
  4. Step 4: Simplify right side
    1,221,356.64x = 591,368,711,357.43
  5. Step 5: Solve for x
    x = 591,368,711,357.43/1,221,356.64
  6. Step 6: Final answer
    x = 484,190.03

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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.