Home / 2,231,031.28-3,078,502.62-1,312,714.48

Finding the Fourth Proportional to 2,231,031.28, 3,078,502.62 and 1,312,714.48

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Solution

The fourth proportional to 2,231,031.28, 3,078,502.62 and 1,312,714.48 is: 1,811,357.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231,031.28 : 3,078,502.62 = 1,312,714.48 : x
  2. Step 2: Convert to fraction form
    2,231,031.28/3,078,502.62 = 1,312,714.48/x
  3. Step 3: Cross multiply
    2,231,031.28x = 3,078,502.62 × 1,312,714.48
  4. Step 4: Simplify right side
    2,231,031.28x = 4,041,194,965,991.94
  5. Step 5: Solve for x
    x = 4,041,194,965,991.94/2,231,031.28
  6. Step 6: Final answer
    x = 1,811,357.38

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Double scale
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1.5x scale

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.