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Finding the Fourth Proportional to 653.41, 901.04 and 454.47

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Solution

The fourth proportional to 653.41, 901.04 and 454.47 is: 626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.41 : 901.04 = 454.47 : x
  2. Step 2: Convert to fraction form
    653.41/901.04 = 454.47/x
  3. Step 3: Cross multiply
    653.41x = 901.04 × 454.47
  4. Step 4: Simplify right side
    653.41x = 409,493.38
  5. Step 5: Solve for x
    x = 409,493.38/653.41
  6. Step 6: Final answer
    x = 626.70

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Double scale
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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.