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Finding the Fourth Proportional to 700,352.01, 966,472.56 and 428,399.91

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Solution

The fourth proportional to 700,352.01, 966,472.56 and 428,399.91 is: 591,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,352.01 : 966,472.56 = 428,399.91 : x
  2. Step 2: Convert to fraction form
    700,352.01/966,472.56 = 428,399.91/x
  3. Step 3: Cross multiply
    700,352.01x = 966,472.56 × 428,399.91
  4. Step 4: Simplify right side
    700,352.01x = 414,036,757,721.47
  5. Step 5: Solve for x
    x = 414,036,757,721.47/700,352.01
  6. Step 6: Final answer
    x = 591,183.79

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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.