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Finding the Fourth Proportional to 677.32, 934.95 and 529.36

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Solution

The fourth proportional to 677.32, 934.95 and 529.36 is: 730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.32 : 934.95 = 529.36 : x
  2. Step 2: Convert to fraction form
    677.32/934.95 = 529.36/x
  3. Step 3: Cross multiply
    677.32x = 934.95 × 529.36
  4. Step 4: Simplify right side
    677.32x = 494,925.13
  5. Step 5: Solve for x
    x = 494,925.13/677.32
  6. Step 6: Final answer
    x = 730.71

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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.