Home / 398,456.06-597,860.77-208,871.19

Finding the Fourth Proportional to 398,456.06, 597,860.77 and 208,871.19

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Solution

The fourth proportional to 398,456.06, 597,860.77 and 208,871.19 is: 313,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,456.06 : 597,860.77 = 208,871.19 : x
  2. Step 2: Convert to fraction form
    398,456.06/597,860.77 = 208,871.19/x
  3. Step 3: Cross multiply
    398,456.06x = 597,860.77 × 208,871.19
  4. Step 4: Simplify right side
    398,456.06x = 124,875,887,720.06
  5. Step 5: Solve for x
    x = 124,875,887,720.06/398,456.06
  6. Step 6: Final answer
    x = 313,399.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.