Home / 672,278.12-927,739.38-370,472.36

Finding the Fourth Proportional to 672,278.12, 927,739.38 and 370,472.36

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Solution

The fourth proportional to 672,278.12, 927,739.38 and 370,472.36 is: 511,249.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,278.12 : 927,739.38 = 370,472.36 : x
  2. Step 2: Convert to fraction form
    672,278.12/927,739.38 = 370,472.36/x
  3. Step 3: Cross multiply
    672,278.12x = 927,739.38 × 370,472.36
  4. Step 4: Simplify right side
    672,278.12x = 343,701,797,573.54
  5. Step 5: Solve for x
    x = 343,701,797,573.54/672,278.12
  6. Step 6: Final answer
    x = 511,249.42

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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.