Home / 5,318,658.28-7,978,162.38-1,724,455

Finding the Fourth Proportional to 5,318,658.28, 7,978,162.38 and 1,724,455

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Solution

The fourth proportional to 5,318,658.28, 7,978,162.38 and 1,724,455 is: 2,586,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,658.28 : 7,978,162.38 = 1,724,455 : x
  2. Step 2: Convert to fraction form
    5,318,658.28/7,978,162.38 = 1,724,455/x
  3. Step 3: Cross multiply
    5,318,658.28x = 7,978,162.38 × 1,724,455
  4. Step 4: Simplify right side
    5,318,658.28x = 13,757,982,007,002.90
  5. Step 5: Solve for x
    x = 13,757,982,007,002.90/5,318,658.28
  6. Step 6: Final answer
    x = 2,586,739.23

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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.