Home / 677,527.81-1,016,121.58-278,278.81

Finding the Fourth Proportional to 677,527.81, 1,016,121.58 and 278,278.81

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Solution

The fourth proportional to 677,527.81, 1,016,121.58 and 278,278.81 is: 417,348.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,527.81 : 1,016,121.58 = 278,278.81 : x
  2. Step 2: Convert to fraction form
    677,527.81/1,016,121.58 = 278,278.81/x
  3. Step 3: Cross multiply
    677,527.81x = 1,016,121.58 × 278,278.81
  4. Step 4: Simplify right side
    677,527.81x = 282,765,100,861.72
  5. Step 5: Solve for x
    x = 282,765,100,861.72/677,527.81
  6. Step 6: Final answer
    x = 417,348.33

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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.