Home / 862,204.64-1,189,842.72-499,838.57

Finding the Fourth Proportional to 862,204.64, 1,189,842.72 and 499,838.57

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Solution

The fourth proportional to 862,204.64, 1,189,842.72 and 499,838.57 is: 689,777.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,204.64 : 1,189,842.72 = 499,838.57 : x
  2. Step 2: Convert to fraction form
    862,204.64/1,189,842.72 = 499,838.57/x
  3. Step 3: Cross multiply
    862,204.64x = 1,189,842.72 × 499,838.57
  4. Step 4: Simplify right side
    862,204.64x = 594,729,277,740.50
  5. Step 5: Solve for x
    x = 594,729,277,740.50/862,204.64
  6. Step 6: Final answer
    x = 689,777.41

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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.