Home / 1,347,490.80-2,021,236.20-869,193.90

Finding the Fourth Proportional to 1,347,490.80, 2,021,236.20 and 869,193.90

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Solution

The fourth proportional to 1,347,490.80, 2,021,236.20 and 869,193.90 is: 1,303,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,490.80 : 2,021,236.20 = 869,193.90 : x
  2. Step 2: Convert to fraction form
    1,347,490.80/2,021,236.20 = 869,193.90/x
  3. Step 3: Cross multiply
    1,347,490.80x = 2,021,236.20 × 869,193.90
  4. Step 4: Simplify right side
    1,347,490.80x = 1,756,846,175,499.18
  5. Step 5: Solve for x
    x = 1,756,846,175,499.18/1,347,490.80
  6. Step 6: Final answer
    x = 1,303,790.85

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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.