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Finding the Fourth Proportional to 568.73, 784.32 and 526.31

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Solution

The fourth proportional to 568.73, 784.32 and 526.31 is: 725.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.73 : 784.32 = 526.31 : x
  2. Step 2: Convert to fraction form
    568.73/784.32 = 526.31/x
  3. Step 3: Cross multiply
    568.73x = 784.32 × 526.31
  4. Step 4: Simplify right side
    568.73x = 412,792.51
  5. Step 5: Solve for x
    x = 412,792.51/568.73
  6. Step 6: Final answer
    x = 725.81

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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.