Home / 2,279,711.28-3,145,908.60-1,312,878

Finding the Fourth Proportional to 2,279,711.28, 3,145,908.60 and 1,312,878

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Solution

The fourth proportional to 2,279,711.28, 3,145,908.60 and 1,312,878 is: 1,811,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279,711.28 : 3,145,908.60 = 1,312,878 : x
  2. Step 2: Convert to fraction form
    2,279,711.28/3,145,908.60 = 1,312,878/x
  3. Step 3: Cross multiply
    2,279,711.28x = 3,145,908.60 × 1,312,878
  4. Step 4: Simplify right side
    2,279,711.28x = 4,130,194,190,950.80
  5. Step 5: Solve for x
    x = 4,130,194,190,950.80/2,279,711.28
  6. Step 6: Final answer
    x = 1,811,718.10

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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.