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Finding the Fourth Proportional to 700.33, 1,049.47 and 623.45

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Solution

The fourth proportional to 700.33, 1,049.47 and 623.45 is: 934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.33 : 1,049.47 = 623.45 : x
  2. Step 2: Convert to fraction form
    700.33/1,049.47 = 623.45/x
  3. Step 3: Cross multiply
    700.33x = 1,049.47 × 623.45
  4. Step 4: Simplify right side
    700.33x = 654,292.07
  5. Step 5: Solve for x
    x = 654,292.07/700.33
  6. Step 6: Final answer
    x = 934.26

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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.