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Finding the Fourth Proportional to 710.23, 978.73 and 579.01

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Solution

The fourth proportional to 710.23, 978.73 and 579.01 is: 797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.23 : 978.73 = 579.01 : x
  2. Step 2: Convert to fraction form
    710.23/978.73 = 579.01/x
  3. Step 3: Cross multiply
    710.23x = 978.73 × 579.01
  4. Step 4: Simplify right side
    710.23x = 566,694.46
  5. Step 5: Solve for x
    x = 566,694.46/710.23
  6. Step 6: Final answer
    x = 797.90

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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.