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Finding the Fourth Proportional to 566,749.19, 780,783.57 and 394,370.71

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Solution

The fourth proportional to 566,749.19, 780,783.57 and 394,370.71 is: 543,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,749.19 : 780,783.57 = 394,370.71 : x
  2. Step 2: Convert to fraction form
    566,749.19/780,783.57 = 394,370.71/x
  3. Step 3: Cross multiply
    566,749.19x = 780,783.57 × 394,370.71
  4. Step 4: Simplify right side
    566,749.19x = 307,918,171,833.21
  5. Step 5: Solve for x
    x = 307,918,171,833.21/566,749.19
  6. Step 6: Final answer
    x = 543,305.89

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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.