Home / 727,585.61-1,091,112.32-278,084.21

Finding the Fourth Proportional to 727,585.61, 1,091,112.32 and 278,084.21

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Solution

The fourth proportional to 727,585.61, 1,091,112.32 and 278,084.21 is: 417,024.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,585.61 : 1,091,112.32 = 278,084.21 : x
  2. Step 2: Convert to fraction form
    727,585.61/1,091,112.32 = 278,084.21/x
  3. Step 3: Cross multiply
    727,585.61x = 1,091,112.32 × 278,084.21
  4. Step 4: Simplify right side
    727,585.61x = 303,421,102,768.12
  5. Step 5: Solve for x
    x = 303,421,102,768.12/727,585.61
  6. Step 6: Final answer
    x = 417,024.61

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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.