Home / 641,790.91-885,669.93-369,856.44

Finding the Fourth Proportional to 641,790.91, 885,669.93 and 369,856.44

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Solution

The fourth proportional to 641,790.91, 885,669.93 and 369,856.44 is: 510,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,790.91 : 885,669.93 = 369,856.44 : x
  2. Step 2: Convert to fraction form
    641,790.91/885,669.93 = 369,856.44/x
  3. Step 3: Cross multiply
    641,790.91x = 885,669.93 × 369,856.44
  4. Step 4: Simplify right side
    641,790.91x = 327,570,727,324.85
  5. Step 5: Solve for x
    x = 327,570,727,324.85/641,790.91
  6. Step 6: Final answer
    x = 510,401.01

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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.