Home / 487,091.80-672,157.71-269,287.43

Finding the Fourth Proportional to 487,091.80, 672,157.71 and 269,287.43

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Solution

The fourth proportional to 487,091.80, 672,157.71 and 269,287.43 is: 371,600.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,091.80 : 672,157.71 = 269,287.43 : x
  2. Step 2: Convert to fraction form
    487,091.80/672,157.71 = 269,287.43/x
  3. Step 3: Cross multiply
    487,091.80x = 672,157.71 × 269,287.43
  4. Step 4: Simplify right side
    487,091.80x = 181,003,623,960.98
  5. Step 5: Solve for x
    x = 181,003,623,960.98/487,091.80
  6. Step 6: Final answer
    x = 371,600.64

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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.