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Finding the Fourth Proportional to 772.73, 1,065.96 and 510.29

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Solution

The fourth proportional to 772.73, 1,065.96 and 510.29 is: 703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    772.73 : 1,065.96 = 510.29 : x
  2. Step 2: Convert to fraction form
    772.73/1,065.96 = 510.29/x
  3. Step 3: Cross multiply
    772.73x = 1,065.96 × 510.29
  4. Step 4: Simplify right side
    772.73x = 543,943.40
  5. Step 5: Solve for x
    x = 543,943.40/772.73
  6. Step 6: Final answer
    x = 703.93

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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.