Home / 486,947.26-672,418.10-303,498.91

Finding the Fourth Proportional to 486,947.26, 672,418.10 and 303,498.91

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Solution

The fourth proportional to 486,947.26, 672,418.10 and 303,498.91 is: 419,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,947.26 : 672,418.10 = 303,498.91 : x
  2. Step 2: Convert to fraction form
    486,947.26/672,418.10 = 303,498.91/x
  3. Step 3: Cross multiply
    486,947.26x = 672,418.10 × 303,498.91
  4. Step 4: Simplify right side
    486,947.26x = 204,078,159,491.97
  5. Step 5: Solve for x
    x = 204,078,159,491.97/486,947.26
  6. Step 6: Final answer
    x = 419,097.05

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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.