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Finding the Fourth Proportional to 965.31, 1,448.19 and 526.98

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Solution

The fourth proportional to 965.31, 1,448.19 and 526.98 is: 790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.31 : 1,448.19 = 526.98 : x
  2. Step 2: Convert to fraction form
    965.31/1,448.19 = 526.98/x
  3. Step 3: Cross multiply
    965.31x = 1,448.19 × 526.98
  4. Step 4: Simplify right side
    965.31x = 763,167.17
  5. Step 5: Solve for x
    x = 763,167.17/965.31
  6. Step 6: Final answer
    x = 790.59

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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.