Home / 638,162.72-880,682.99-351,701.25

Finding the Fourth Proportional to 638,162.72, 880,682.99 and 351,701.25

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Solution

The fourth proportional to 638,162.72, 880,682.99 and 351,701.25 is: 485,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,162.72 : 880,682.99 = 351,701.25 : x
  2. Step 2: Convert to fraction form
    638,162.72/880,682.99 = 351,701.25/x
  3. Step 3: Cross multiply
    638,162.72x = 880,682.99 × 351,701.25
  4. Step 4: Simplify right side
    638,162.72x = 309,737,306,678.23
  5. Step 5: Solve for x
    x = 309,737,306,678.23/638,162.72
  6. Step 6: Final answer
    x = 485,357.89

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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.