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Finding the Fourth Proportional to 653.13, 902.04 and 612.43

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Solution

The fourth proportional to 653.13, 902.04 and 612.43 is: 845.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.13 : 902.04 = 612.43 : x
  2. Step 2: Convert to fraction form
    653.13/902.04 = 612.43/x
  3. Step 3: Cross multiply
    653.13x = 902.04 × 612.43
  4. Step 4: Simplify right side
    653.13x = 552,431.81
  5. Step 5: Solve for x
    x = 552,431.81/653.13
  6. Step 6: Final answer
    x = 845.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.