Home / 1,081,574.40-1,619,251.20-661,670.40

Finding the Fourth Proportional to 1,081,574.40, 1,619,251.20 and 661,670.40

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Solution

The fourth proportional to 1,081,574.40, 1,619,251.20 and 661,670.40 is: 990,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,574.40 : 1,619,251.20 = 661,670.40 : x
  2. Step 2: Convert to fraction form
    1,081,574.40/1,619,251.20 = 661,670.40/x
  3. Step 3: Cross multiply
    1,081,574.40x = 1,619,251.20 × 661,670.40
  4. Step 4: Simplify right side
    1,081,574.40x = 1,071,410,589,204.48
  5. Step 5: Solve for x
    x = 1,071,410,589,204.48/1,081,574.40
  6. Step 6: Final answer
    x = 990,602.76

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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.