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Finding the Fourth Proportional to 923.58, 1,274.66 and 530.59

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Solution

The fourth proportional to 923.58, 1,274.66 and 530.59 is: 732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.58 : 1,274.66 = 530.59 : x
  2. Step 2: Convert to fraction form
    923.58/1,274.66 = 530.59/x
  3. Step 3: Cross multiply
    923.58x = 1,274.66 × 530.59
  4. Step 4: Simplify right side
    923.58x = 676,321.85
  5. Step 5: Solve for x
    x = 676,321.85/923.58
  6. Step 6: Final answer
    x = 732.28

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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.