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Finding the Fourth Proportional to 622.52, 929.40 and 525.32

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Solution

The fourth proportional to 622.52, 929.40 and 525.32 is: 784.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.52 : 929.40 = 525.32 : x
  2. Step 2: Convert to fraction form
    622.52/929.40 = 525.32/x
  3. Step 3: Cross multiply
    622.52x = 929.40 × 525.32
  4. Step 4: Simplify right side
    622.52x = 488,232.41
  5. Step 5: Solve for x
    x = 488,232.41/622.52
  6. Step 6: Final answer
    x = 784.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.