Home / 641,785.23-885,629.91-351,341.10

Finding the Fourth Proportional to 641,785.23, 885,629.91 and 351,341.10

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Solution

The fourth proportional to 641,785.23, 885,629.91 and 351,341.10 is: 484,832.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,785.23 : 885,629.91 = 351,341.10 : x
  2. Step 2: Convert to fraction form
    641,785.23/885,629.91 = 351,341.10/x
  3. Step 3: Cross multiply
    641,785.23x = 885,629.91 × 351,341.10
  4. Step 4: Simplify right side
    641,785.23x = 311,158,188,089.83
  5. Step 5: Solve for x
    x = 311,158,188,089.83/641,785.23
  6. Step 6: Final answer
    x = 484,832.27

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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.