Home / 727,534.20-1,090,782.90-278,081.40

Finding the Fourth Proportional to 727,534.20, 1,090,782.90 and 278,081.40

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Solution

The fourth proportional to 727,534.20, 1,090,782.90 and 278,081.40 is: 416,923.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,534.20 : 1,090,782.90 = 278,081.40 : x
  2. Step 2: Convert to fraction form
    727,534.20/1,090,782.90 = 278,081.40/x
  3. Step 3: Cross multiply
    727,534.20x = 1,090,782.90 × 278,081.40
  4. Step 4: Simplify right side
    727,534.20x = 303,326,435,928.06
  5. Step 5: Solve for x
    x = 303,326,435,928.06/727,534.20
  6. Step 6: Final answer
    x = 416,923.95

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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.