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Finding the Fourth Proportional to 708.06, 977.10 and 446.07

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Solution

The fourth proportional to 708.06, 977.10 and 446.07 is: 615.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.06 : 977.10 = 446.07 : x
  2. Step 2: Convert to fraction form
    708.06/977.10 = 446.07/x
  3. Step 3: Cross multiply
    708.06x = 977.10 × 446.07
  4. Step 4: Simplify right side
    708.06x = 435,855.00
  5. Step 5: Solve for x
    x = 435,855.00/708.06
  6. Step 6: Final answer
    x = 615.56

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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.