Home / 863,501.58-1,191,960.45-649,263.78

Finding the Fourth Proportional to 863,501.58, 1,191,960.45 and 649,263.78

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Solution

The fourth proportional to 863,501.58, 1,191,960.45 and 649,263.78 is: 896,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,501.58 : 1,191,960.45 = 649,263.78 : x
  2. Step 2: Convert to fraction form
    863,501.58/1,191,960.45 = 649,263.78/x
  3. Step 3: Cross multiply
    863,501.58x = 1,191,960.45 × 649,263.78
  4. Step 4: Simplify right side
    863,501.58x = 773,896,747,377.50
  5. Step 5: Solve for x
    x = 773,896,747,377.50/863,501.58
  6. Step 6: Final answer
    x = 896,230.84

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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.