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Finding the Fourth Proportional to 613.04, 841.30 and 608.72

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Solution

The fourth proportional to 613.04, 841.30 and 608.72 is: 835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.04 : 841.30 = 608.72 : x
  2. Step 2: Convert to fraction form
    613.04/841.30 = 608.72/x
  3. Step 3: Cross multiply
    613.04x = 841.30 × 608.72
  4. Step 4: Simplify right side
    613.04x = 512,116.14
  5. Step 5: Solve for x
    x = 512,116.14/613.04
  6. Step 6: Final answer
    x = 835.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.