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Finding the Fourth Proportional to 700.22, 1,048.17 and 456.22

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Solution

The fourth proportional to 700.22, 1,048.17 and 456.22 is: 682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.22 : 1,048.17 = 456.22 : x
  2. Step 2: Convert to fraction form
    700.22/1,048.17 = 456.22/x
  3. Step 3: Cross multiply
    700.22x = 1,048.17 × 456.22
  4. Step 4: Simplify right side
    700.22x = 478,196.12
  5. Step 5: Solve for x
    x = 478,196.12/700.22
  6. Step 6: Final answer
    x = 682.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.