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Finding the Fourth Proportional to 566,751.65, 780,786.96 and 394,373.17

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Solution

The fourth proportional to 566,751.65, 780,786.96 and 394,373.17 is: 543,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,751.65 : 780,786.96 = 394,373.17 : x
  2. Step 2: Convert to fraction form
    566,751.65/780,786.96 = 394,373.17/x
  3. Step 3: Cross multiply
    566,751.65x = 780,786.96 × 394,373.17
  4. Step 4: Simplify right side
    566,751.65x = 307,921,428,509.86
  5. Step 5: Solve for x
    x = 307,921,428,509.86/566,751.65
  6. Step 6: Final answer
    x = 543,309.28

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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.