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Finding the Fourth Proportional to 630.12, 940.37 and 530.92

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Solution

The fourth proportional to 630.12, 940.37 and 530.92 is: 792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.12 : 940.37 = 530.92 : x
  2. Step 2: Convert to fraction form
    630.12/940.37 = 530.92/x
  3. Step 3: Cross multiply
    630.12x = 940.37 × 530.92
  4. Step 4: Simplify right side
    630.12x = 499,261.24
  5. Step 5: Solve for x
    x = 499,261.24/630.12
  6. Step 6: Final answer
    x = 792.33

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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.