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Finding the Fourth Proportional to 710.99, 1,066.33 and 346.04

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Solution

The fourth proportional to 710.99, 1,066.33 and 346.04 is: 518.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.99 : 1,066.33 = 346.04 : x
  2. Step 2: Convert to fraction form
    710.99/1,066.33 = 346.04/x
  3. Step 3: Cross multiply
    710.99x = 1,066.33 × 346.04
  4. Step 4: Simplify right side
    710.99x = 368,992.83
  5. Step 5: Solve for x
    x = 368,992.83/710.99
  6. Step 6: Final answer
    x = 518.98

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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.