Home / 1,187,236.76-1,777,900.92-830,580.80

Finding the Fourth Proportional to 1,187,236.76, 1,777,900.92 and 830,580.80

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Solution

The fourth proportional to 1,187,236.76, 1,777,900.92 and 830,580.80 is: 1,243,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,236.76 : 1,777,900.92 = 830,580.80 : x
  2. Step 2: Convert to fraction form
    1,187,236.76/1,777,900.92 = 830,580.80/x
  3. Step 3: Cross multiply
    1,187,236.76x = 1,777,900.92 × 830,580.80
  4. Step 4: Simplify right side
    1,187,236.76x = 1,476,690,368,454.34
  5. Step 5: Solve for x
    x = 1,476,690,368,454.34/1,187,236.76
  6. Step 6: Final answer
    x = 1,243,804.45

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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.