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Finding the Fourth Proportional to 566,748.79, 780,783.02 and 394,370.31

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Solution

The fourth proportional to 566,748.79, 780,783.02 and 394,370.31 is: 543,305.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,748.79 : 780,783.02 = 394,370.31 : x
  2. Step 2: Convert to fraction form
    566,748.79/780,783.02 = 394,370.31/x
  3. Step 3: Cross multiply
    566,748.79x = 780,783.02 × 394,370.31
  4. Step 4: Simplify right side
    566,748.79x = 307,917,639,668.29
  5. Step 5: Solve for x
    x = 307,917,639,668.29/566,748.79
  6. Step 6: Final answer
    x = 543,305.33

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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.