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Finding the Fourth Proportional to 706.16, 973.96 and 457.54

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Solution

The fourth proportional to 706.16, 973.96 and 457.54 is: 631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.16 : 973.96 = 457.54 : x
  2. Step 2: Convert to fraction form
    706.16/973.96 = 457.54/x
  3. Step 3: Cross multiply
    706.16x = 973.96 × 457.54
  4. Step 4: Simplify right side
    706.16x = 445,622.08
  5. Step 5: Solve for x
    x = 445,622.08/706.16
  6. Step 6: Final answer
    x = 631.05

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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.