Home / 708,690.98-1,061,183.40-388,176.09

Finding the Fourth Proportional to 708,690.98, 1,061,183.40 and 388,176.09

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Solution

The fourth proportional to 708,690.98, 1,061,183.40 and 388,176.09 is: 581,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,690.98 : 1,061,183.40 = 388,176.09 : x
  2. Step 2: Convert to fraction form
    708,690.98/1,061,183.40 = 388,176.09/x
  3. Step 3: Cross multiply
    708,690.98x = 1,061,183.40 × 388,176.09
  4. Step 4: Simplify right side
    708,690.98x = 411,926,022,984.91
  5. Step 5: Solve for x
    x = 411,926,022,984.91/708,690.98
  6. Step 6: Final answer
    x = 581,249.14

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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.