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Finding the Fourth Proportional to 914.93, 1,370.32 and 750.91

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Solution

The fourth proportional to 914.93, 1,370.32 and 750.91 is: 1,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.93 : 1,370.32 = 750.91 : x
  2. Step 2: Convert to fraction form
    914.93/1,370.32 = 750.91/x
  3. Step 3: Cross multiply
    914.93x = 1,370.32 × 750.91
  4. Step 4: Simplify right side
    914.93x = 1,028,986.99
  5. Step 5: Solve for x
    x = 1,028,986.99/914.93
  6. Step 6: Final answer
    x = 1,124.66

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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.