Home / 1,427,144.20-1,969,477.86-782,562.76

Finding the Fourth Proportional to 1,427,144.20, 1,969,477.86 and 782,562.76

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Solution

The fourth proportional to 1,427,144.20, 1,969,477.86 and 782,562.76 is: 1,079,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,144.20 : 1,969,477.86 = 782,562.76 : x
  2. Step 2: Convert to fraction form
    1,427,144.20/1,969,477.86 = 782,562.76/x
  3. Step 3: Cross multiply
    1,427,144.20x = 1,969,477.86 × 782,562.76
  4. Step 4: Simplify right side
    1,427,144.20x = 1,541,240,029,880.49
  5. Step 5: Solve for x
    x = 1,541,240,029,880.49/1,427,144.20
  6. Step 6: Final answer
    x = 1,079,946.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.