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Finding the Fourth Proportional to 520.94, 783.57 and 471.26

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Solution

The fourth proportional to 520.94, 783.57 and 471.26 is: 708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.94 : 783.57 = 471.26 : x
  2. Step 2: Convert to fraction form
    520.94/783.57 = 471.26/x
  3. Step 3: Cross multiply
    520.94x = 783.57 × 471.26
  4. Step 4: Simplify right side
    520.94x = 369,265.20
  5. Step 5: Solve for x
    x = 369,265.20/520.94
  6. Step 6: Final answer
    x = 708.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.