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Finding the Fourth Proportional to 929.95, 1,282.22 and 598.39

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Solution

The fourth proportional to 929.95, 1,282.22 and 598.39 is: 825.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.95 : 1,282.22 = 598.39 : x
  2. Step 2: Convert to fraction form
    929.95/1,282.22 = 598.39/x
  3. Step 3: Cross multiply
    929.95x = 1,282.22 × 598.39
  4. Step 4: Simplify right side
    929.95x = 767,267.63
  5. Step 5: Solve for x
    x = 767,267.63/929.95
  6. Step 6: Final answer
    x = 825.06

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Why These Related Problems?

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