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Finding the Fourth Proportional to 708.00, 1,061.20 and 360.36

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Solution

The fourth proportional to 708.00, 1,061.20 and 360.36 is: 540.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.00 : 1,061.20 = 360.36 : x
  2. Step 2: Convert to fraction form
    708.00/1,061.20 = 360.36/x
  3. Step 3: Cross multiply
    708.00x = 1,061.20 × 360.36
  4. Step 4: Simplify right side
    708.00x = 382,411.50
  5. Step 5: Solve for x
    x = 382,411.50/708.00
  6. Step 6: Final answer
    x = 540.13

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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.