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Finding the Fourth Proportional to 560.36, 841.08 and 422.94

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Solution

The fourth proportional to 560.36, 841.08 and 422.94 is: 634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.36 : 841.08 = 422.94 : x
  2. Step 2: Convert to fraction form
    560.36/841.08 = 422.94/x
  3. Step 3: Cross multiply
    560.36x = 841.08 × 422.94
  4. Step 4: Simplify right side
    560.36x = 355,726.38
  5. Step 5: Solve for x
    x = 355,726.38/560.36
  6. Step 6: Final answer
    x = 634.82

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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.