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Finding the Fourth Proportional to 598.78, 898.61 and 306.53

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Solution

The fourth proportional to 598.78, 898.61 and 306.53 is: 460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.78 : 898.61 = 306.53 : x
  2. Step 2: Convert to fraction form
    598.78/898.61 = 306.53/x
  3. Step 3: Cross multiply
    598.78x = 898.61 × 306.53
  4. Step 4: Simplify right side
    598.78x = 275,448.51
  5. Step 5: Solve for x
    x = 275,448.51/598.78
  6. Step 6: Final answer
    x = 460.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.