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Finding the Fourth Proportional to 835.77, 1,153.29 and 521.07

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Solution

The fourth proportional to 835.77, 1,153.29 and 521.07 is: 719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.77 : 1,153.29 = 521.07 : x
  2. Step 2: Convert to fraction form
    835.77/1,153.29 = 521.07/x
  3. Step 3: Cross multiply
    835.77x = 1,153.29 × 521.07
  4. Step 4: Simplify right side
    835.77x = 600,944.82
  5. Step 5: Solve for x
    x = 600,944.82/835.77
  6. Step 6: Final answer
    x = 719.03

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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.