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Finding the Fourth Proportional to 557.04, 839.79 and 527.28

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Solution

The fourth proportional to 557.04, 839.79 and 527.28 is: 794.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.04 : 839.79 = 527.28 : x
  2. Step 2: Convert to fraction form
    557.04/839.79 = 527.28/x
  3. Step 3: Cross multiply
    557.04x = 839.79 × 527.28
  4. Step 4: Simplify right side
    557.04x = 442,804.47
  5. Step 5: Solve for x
    x = 442,804.47/557.04
  6. Step 6: Final answer
    x = 794.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.