Home / 1,986,222.76-2,977,267.27-920,388.31

Finding the Fourth Proportional to 1,986,222.76, 2,977,267.27 and 920,388.31

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Solution

The fourth proportional to 1,986,222.76, 2,977,267.27 and 920,388.31 is: 1,379,624.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,222.76 : 2,977,267.27 = 920,388.31 : x
  2. Step 2: Convert to fraction form
    1,986,222.76/2,977,267.27 = 920,388.31/x
  3. Step 3: Cross multiply
    1,986,222.76x = 2,977,267.27 × 920,388.31
  4. Step 4: Simplify right side
    1,986,222.76x = 2,740,241,991,053.61
  5. Step 5: Solve for x
    x = 2,740,241,991,053.61/1,986,222.76
  6. Step 6: Final answer
    x = 1,379,624.71

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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.