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Finding the Fourth Proportional to 922.92, 1,273.70 and 530.12

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Solution

The fourth proportional to 922.92, 1,273.70 and 530.12 is: 731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.92 : 1,273.70 = 530.12 : x
  2. Step 2: Convert to fraction form
    922.92/1,273.70 = 530.12/x
  3. Step 3: Cross multiply
    922.92x = 1,273.70 × 530.12
  4. Step 4: Simplify right side
    922.92x = 675,213.84
  5. Step 5: Solve for x
    x = 675,213.84/922.92
  6. Step 6: Final answer
    x = 731.61

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1.5x scale

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.