Home / 484,992.20-727,488.30-272,415.80

Finding the Fourth Proportional to 484,992.20, 727,488.30 and 272,415.80

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Solution

The fourth proportional to 484,992.20, 727,488.30 and 272,415.80 is: 408,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,992.20 : 727,488.30 = 272,415.80 : x
  2. Step 2: Convert to fraction form
    484,992.20/727,488.30 = 272,415.80/x
  3. Step 3: Cross multiply
    484,992.20x = 727,488.30 × 272,415.80
  4. Step 4: Simplify right side
    484,992.20x = 198,179,307,235.14
  5. Step 5: Solve for x
    x = 198,179,307,235.14/484,992.20
  6. Step 6: Final answer
    x = 408,623.70

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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.