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Finding the Fourth Proportional to 653.60, 974.89 and 608.24

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Solution

The fourth proportional to 653.60, 974.89 and 608.24 is: 907.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.60 : 974.89 = 608.24 : x
  2. Step 2: Convert to fraction form
    653.60/974.89 = 608.24/x
  3. Step 3: Cross multiply
    653.60x = 974.89 × 608.24
  4. Step 4: Simplify right side
    653.60x = 592,967.09
  5. Step 5: Solve for x
    x = 592,967.09/653.60
  6. Step 6: Final answer
    x = 907.23

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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.