Home / 1,267,926.80-1,901,890.20-820,029.20

Finding the Fourth Proportional to 1,267,926.80, 1,901,890.20 and 820,029.20

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Solution

The fourth proportional to 1,267,926.80, 1,901,890.20 and 820,029.20 is: 1,230,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,926.80 : 1,901,890.20 = 820,029.20 : x
  2. Step 2: Convert to fraction form
    1,267,926.80/1,901,890.20 = 820,029.20/x
  3. Step 3: Cross multiply
    1,267,926.80x = 1,901,890.20 × 820,029.20
  4. Step 4: Simplify right side
    1,267,926.80x = 1,559,605,499,193.84
  5. Step 5: Solve for x
    x = 1,559,605,499,193.84/1,267,926.80
  6. Step 6: Final answer
    x = 1,230,043.80

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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.