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Finding the Fourth Proportional to 693.07, 955.32 and 608.83

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Solution

The fourth proportional to 693.07, 955.32 and 608.83 is: 839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.07 : 955.32 = 608.83 : x
  2. Step 2: Convert to fraction form
    693.07/955.32 = 608.83/x
  3. Step 3: Cross multiply
    693.07x = 955.32 × 608.83
  4. Step 4: Simplify right side
    693.07x = 581,627.48
  5. Step 5: Solve for x
    x = 581,627.48/693.07
  6. Step 6: Final answer
    x = 839.20

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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.