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Finding the Fourth Proportional to 707.89, 976.30 and 552.37

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Solution

The fourth proportional to 707.89, 976.30 and 552.37 is: 761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.89 : 976.30 = 552.37 : x
  2. Step 2: Convert to fraction form
    707.89/976.30 = 552.37/x
  3. Step 3: Cross multiply
    707.89x = 976.30 × 552.37
  4. Step 4: Simplify right side
    707.89x = 539,278.83
  5. Step 5: Solve for x
    x = 539,278.83/707.89
  6. Step 6: Final answer
    x = 761.81

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1.5x scale

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.