Home / 386,559.02-579,083.97-266,332.34

Finding the Fourth Proportional to 386,559.02, 579,083.97 and 266,332.34

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Solution

The fourth proportional to 386,559.02, 579,083.97 and 266,332.34 is: 398,978.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,559.02 : 579,083.97 = 266,332.34 : x
  2. Step 2: Convert to fraction form
    386,559.02/579,083.97 = 266,332.34/x
  3. Step 3: Cross multiply
    386,559.02x = 579,083.97 × 266,332.34
  4. Step 4: Simplify right side
    386,559.02x = 154,228,788,786.59
  5. Step 5: Solve for x
    x = 154,228,788,786.59/386,559.02
  6. Step 6: Final answer
    x = 398,978.63

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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.