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Finding the Fourth Proportional to 613.43, 921.06 and 602.50

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Solution

The fourth proportional to 613.43, 921.06 and 602.50 is: 904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.43 : 921.06 = 602.50 : x
  2. Step 2: Convert to fraction form
    613.43/921.06 = 602.50/x
  3. Step 3: Cross multiply
    613.43x = 921.06 × 602.50
  4. Step 4: Simplify right side
    613.43x = 554,931.03
  5. Step 5: Solve for x
    x = 554,931.03/613.43
  6. Step 6: Final answer
    x = 904.64

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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.