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Finding the Fourth Proportional to 703.50, 1,053.36 and 565.80

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Solution

The fourth proportional to 703.50, 1,053.36 and 565.80 is: 847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.50 : 1,053.36 = 565.80 : x
  2. Step 2: Convert to fraction form
    703.50/1,053.36 = 565.80/x
  3. Step 3: Cross multiply
    703.50x = 1,053.36 × 565.80
  4. Step 4: Simplify right side
    703.50x = 595,991.09
  5. Step 5: Solve for x
    x = 595,991.09/703.50
  6. Step 6: Final answer
    x = 847.18

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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.