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Finding the Fourth Proportional to 959.98, 1,438.98 and 526.22

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Solution

The fourth proportional to 959.98, 1,438.98 and 526.22 is: 788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.98 : 1,438.98 = 526.22 : x
  2. Step 2: Convert to fraction form
    959.98/1,438.98 = 526.22/x
  3. Step 3: Cross multiply
    959.98x = 1,438.98 × 526.22
  4. Step 4: Simplify right side
    959.98x = 757,220.06
  5. Step 5: Solve for x
    x = 757,220.06/959.98
  6. Step 6: Final answer
    x = 788.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.