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Finding the Fourth Proportional to 529.79, 730.71 and 506.52

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Solution

The fourth proportional to 529.79, 730.71 and 506.52 is: 698.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.79 : 730.71 = 506.52 : x
  2. Step 2: Convert to fraction form
    529.79/730.71 = 506.52/x
  3. Step 3: Cross multiply
    529.79x = 730.71 × 506.52
  4. Step 4: Simplify right side
    529.79x = 370,119.23
  5. Step 5: Solve for x
    x = 370,119.23/529.79
  6. Step 6: Final answer
    x = 698.62

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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.