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Finding the Fourth Proportional to 710.08, 1,063.66 and 490.16

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Solution

The fourth proportional to 710.08, 1,063.66 and 490.16 is: 734.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.08 : 1,063.66 = 490.16 : x
  2. Step 2: Convert to fraction form
    710.08/1,063.66 = 490.16/x
  3. Step 3: Cross multiply
    710.08x = 1,063.66 × 490.16
  4. Step 4: Simplify right side
    710.08x = 521,363.59
  5. Step 5: Solve for x
    x = 521,363.59/710.08
  6. Step 6: Final answer
    x = 734.23

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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.