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Finding the Fourth Proportional to 707.59, 976.55 and 445.62

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Solution

The fourth proportional to 707.59, 976.55 and 445.62 is: 615.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.59 : 976.55 = 445.62 : x
  2. Step 2: Convert to fraction form
    707.59/976.55 = 445.62/x
  3. Step 3: Cross multiply
    707.59x = 976.55 × 445.62
  4. Step 4: Simplify right side
    707.59x = 435,170.21
  5. Step 5: Solve for x
    x = 435,170.21/707.59
  6. Step 6: Final answer
    x = 615.00

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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.