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Finding the Fourth Proportional to 607.11, 906.30 and 582.81

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Solution

The fourth proportional to 607.11, 906.30 and 582.81 is: 870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.11 : 906.30 = 582.81 : x
  2. Step 2: Convert to fraction form
    607.11/906.30 = 582.81/x
  3. Step 3: Cross multiply
    607.11x = 906.30 × 582.81
  4. Step 4: Simplify right side
    607.11x = 528,200.70
  5. Step 5: Solve for x
    x = 528,200.70/607.11
  6. Step 6: Final answer
    x = 870.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.