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Finding the Fourth Proportional to 501.58, 695.47 and 495.46

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Solution

The fourth proportional to 501.58, 695.47 and 495.46 is: 686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.58 : 695.47 = 495.46 : x
  2. Step 2: Convert to fraction form
    501.58/695.47 = 495.46/x
  3. Step 3: Cross multiply
    501.58x = 695.47 × 495.46
  4. Step 4: Simplify right side
    501.58x = 344,577.57
  5. Step 5: Solve for x
    x = 344,577.57/501.58
  6. Step 6: Final answer
    x = 686.98

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.