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Finding the Fourth Proportional to 887.94, 1,330.98 and 497.37

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Solution

The fourth proportional to 887.94, 1,330.98 and 497.37 is: 745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.94 : 1,330.98 = 497.37 : x
  2. Step 2: Convert to fraction form
    887.94/1,330.98 = 497.37/x
  3. Step 3: Cross multiply
    887.94x = 1,330.98 × 497.37
  4. Step 4: Simplify right side
    887.94x = 661,987.96
  5. Step 5: Solve for x
    x = 661,987.96/887.94
  6. Step 6: Final answer
    x = 745.53

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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.