Home / 641,720.65-885,584.96-351,327.35

Finding the Fourth Proportional to 641,720.65, 885,584.96 and 351,327.35

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Solution

The fourth proportional to 641,720.65, 885,584.96 and 351,327.35 is: 484,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,720.65 : 885,584.96 = 351,327.35 : x
  2. Step 2: Convert to fraction form
    641,720.65/885,584.96 = 351,327.35/x
  3. Step 3: Cross multiply
    641,720.65x = 885,584.96 × 351,327.35
  4. Step 4: Simplify right side
    641,720.65x = 311,130,211,012.09
  5. Step 5: Solve for x
    x = 311,130,211,012.09/641,720.65
  6. Step 6: Final answer
    x = 484,837.47

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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.