Home / 863,516.58-1,191,981.15-649,278.78

Finding the Fourth Proportional to 863,516.58, 1,191,981.15 and 649,278.78

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Solution

The fourth proportional to 863,516.58, 1,191,981.15 and 649,278.78 is: 896,251.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,516.58 : 1,191,981.15 = 649,278.78 : x
  2. Step 2: Convert to fraction form
    863,516.58/1,191,981.15 = 649,278.78/x
  3. Step 3: Cross multiply
    863,516.58x = 1,191,981.15 × 649,278.78
  4. Step 4: Simplify right side
    863,516.58x = 773,928,066,855.00
  5. Step 5: Solve for x
    x = 773,928,066,855.00/863,516.58
  6. Step 6: Final answer
    x = 896,251.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.