Home / 927,469.08-1,279,845.90-513,978.12

Finding the Fourth Proportional to 927,469.08, 1,279,845.90 and 513,978.12

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Solution

The fourth proportional to 927,469.08, 1,279,845.90 and 513,978.12 is: 709,255.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,469.08 : 1,279,845.90 = 513,978.12 : x
  2. Step 2: Convert to fraction form
    927,469.08/1,279,845.90 = 513,978.12/x
  3. Step 3: Cross multiply
    927,469.08x = 1,279,845.90 × 513,978.12
  4. Step 4: Simplify right side
    927,469.08x = 657,812,789,571.71
  5. Step 5: Solve for x
    x = 657,812,789,571.71/927,469.08
  6. Step 6: Final answer
    x = 709,255.76

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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.