Home / 915.03-1,262.76-522.18

Finding the Fourth Proportional to 915.03, 1,262.76 and 522.18

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Solution

The fourth proportional to 915.03, 1,262.76 and 522.18 is: 720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.03 : 1,262.76 = 522.18 : x
  2. Step 2: Convert to fraction form
    915.03/1,262.76 = 522.18/x
  3. Step 3: Cross multiply
    915.03x = 1,262.76 × 522.18
  4. Step 4: Simplify right side
    915.03x = 659,388.02
  5. Step 5: Solve for x
    x = 659,388.02/915.03
  6. Step 6: Final answer
    x = 720.62

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Double scale
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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.