Home / 1,275,939.76-1,913,846.10-477,162.64

Finding the Fourth Proportional to 1,275,939.76, 1,913,846.10 and 477,162.64

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Solution

The fourth proportional to 1,275,939.76, 1,913,846.10 and 477,162.64 is: 715,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,939.76 : 1,913,846.10 = 477,162.64 : x
  2. Step 2: Convert to fraction form
    1,275,939.76/1,913,846.10 = 477,162.64/x
  3. Step 3: Cross multiply
    1,275,939.76x = 1,913,846.10 × 477,162.64
  4. Step 4: Simplify right side
    1,275,939.76x = 913,215,857,629.70
  5. Step 5: Solve for x
    x = 913,215,857,629.70/1,275,939.76
  6. Step 6: Final answer
    x = 715,720.20

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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.