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Finding the Fourth Proportional to 1,061.76, 1,464.92 and 613.50

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Solution

The fourth proportional to 1,061.76, 1,464.92 and 613.50 is: 846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.76 : 1,464.92 = 613.50 : x
  2. Step 2: Convert to fraction form
    1,061.76/1,464.92 = 613.50/x
  3. Step 3: Cross multiply
    1,061.76x = 1,464.92 × 613.50
  4. Step 4: Simplify right side
    1,061.76x = 898,728.42
  5. Step 5: Solve for x
    x = 898,728.42/1,061.76
  6. Step 6: Final answer
    x = 846.45

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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.