Home / 578,139.40-867,468.30-262,433.80

Finding the Fourth Proportional to 578,139.40, 867,468.30 and 262,433.80

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Solution

The fourth proportional to 578,139.40, 867,468.30 and 262,433.80 is: 393,768.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,139.40 : 867,468.30 = 262,433.80 : x
  2. Step 2: Convert to fraction form
    578,139.40/867,468.30 = 262,433.80/x
  3. Step 3: Cross multiply
    578,139.40x = 867,468.30 × 262,433.80
  4. Step 4: Simplify right side
    578,139.40x = 227,653,002,348.54
  5. Step 5: Solve for x
    x = 227,653,002,348.54/578,139.40
  6. Step 6: Final answer
    x = 393,768.36

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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.