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Finding the Fourth Proportional to 569.73, 785.70 and 527.31

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Solution

The fourth proportional to 569.73, 785.70 and 527.31 is: 727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.73 : 785.70 = 527.31 : x
  2. Step 2: Convert to fraction form
    569.73/785.70 = 527.31/x
  3. Step 3: Cross multiply
    569.73x = 785.70 × 527.31
  4. Step 4: Simplify right side
    569.73x = 414,307.47
  5. Step 5: Solve for x
    x = 414,307.47/569.73
  6. Step 6: Final answer
    x = 727.20

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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.