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Finding the Fourth Proportional to 700.48, 1,051.20 and 444.16

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Solution

The fourth proportional to 700.48, 1,051.20 and 444.16 is: 666.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.48 : 1,051.20 = 444.16 : x
  2. Step 2: Convert to fraction form
    700.48/1,051.20 = 444.16/x
  3. Step 3: Cross multiply
    700.48x = 1,051.20 × 444.16
  4. Step 4: Simplify right side
    700.48x = 466,900.99
  5. Step 5: Solve for x
    x = 466,900.99/700.48
  6. Step 6: Final answer
    x = 666.54

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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.