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Finding the Fourth Proportional to 991.73, 1,487.94 and 602.52

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Solution

The fourth proportional to 991.73, 1,487.94 and 602.52 is: 904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    991.73 : 1,487.94 = 602.52 : x
  2. Step 2: Convert to fraction form
    991.73/1,487.94 = 602.52/x
  3. Step 3: Cross multiply
    991.73x = 1,487.94 × 602.52
  4. Step 4: Simplify right side
    991.73x = 896,515.87
  5. Step 5: Solve for x
    x = 896,515.87/991.73
  6. Step 6: Final answer
    x = 904.00

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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.