Home / 1,861,807.40-2,792,711.10-1,661,040.80

Finding the Fourth Proportional to 1,861,807.40, 2,792,711.10 and 1,661,040.80

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Solution

The fourth proportional to 1,861,807.40, 2,792,711.10 and 1,661,040.80 is: 2,491,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,807.40 : 2,792,711.10 = 1,661,040.80 : x
  2. Step 2: Convert to fraction form
    1,861,807.40/2,792,711.10 = 1,661,040.80/x
  3. Step 3: Cross multiply
    1,861,807.40x = 2,792,711.10 × 1,661,040.80
  4. Step 4: Simplify right side
    1,861,807.40x = 4,638,807,079,712.88
  5. Step 5: Solve for x
    x = 4,638,807,079,712.88/1,861,807.40
  6. Step 6: Final answer
    x = 2,491,561.20

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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.