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Finding the Fourth Proportional to 710.30, 1,063.49 and 536.45

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Solution

The fourth proportional to 710.30, 1,063.49 and 536.45 is: 803.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.30 : 1,063.49 = 536.45 : x
  2. Step 2: Convert to fraction form
    710.30/1,063.49 = 536.45/x
  3. Step 3: Cross multiply
    710.30x = 1,063.49 × 536.45
  4. Step 4: Simplify right side
    710.30x = 570,501.21
  5. Step 5: Solve for x
    x = 570,501.21/710.30
  6. Step 6: Final answer
    x = 803.18

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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.