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Finding the Fourth Proportional to 700.07, 1,050.04 and 329.79

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Solution

The fourth proportional to 700.07, 1,050.04 and 329.79 is: 494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.07 : 1,050.04 = 329.79 : x
  2. Step 2: Convert to fraction form
    700.07/1,050.04 = 329.79/x
  3. Step 3: Cross multiply
    700.07x = 1,050.04 × 329.79
  4. Step 4: Simplify right side
    700.07x = 346,292.69
  5. Step 5: Solve for x
    x = 346,292.69/700.07
  6. Step 6: Final answer
    x = 494.65

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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.