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Finding the Fourth Proportional to 624.80, 935.37 and 561.92

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Solution

The fourth proportional to 624.80, 935.37 and 561.92 is: 841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.80 : 935.37 = 561.92 : x
  2. Step 2: Convert to fraction form
    624.80/935.37 = 561.92/x
  3. Step 3: Cross multiply
    624.80x = 935.37 × 561.92
  4. Step 4: Simplify right side
    624.80x = 525,598.43
  5. Step 5: Solve for x
    x = 525,598.43/624.80
  6. Step 6: Final answer
    x = 841.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.