Home / 486,979.02-672,018.15-272,120.85

Finding the Fourth Proportional to 486,979.02, 672,018.15 and 272,120.85

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Solution

The fourth proportional to 486,979.02, 672,018.15 and 272,120.85 is: 375,519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,979.02 : 672,018.15 = 272,120.85 : x
  2. Step 2: Convert to fraction form
    486,979.02/672,018.15 = 272,120.85/x
  3. Step 3: Cross multiply
    486,979.02x = 672,018.15 × 272,120.85
  4. Step 4: Simplify right side
    486,979.02x = 182,870,151,213.88
  5. Step 5: Solve for x
    x = 182,870,151,213.88/486,979.02
  6. Step 6: Final answer
    x = 375,519.57

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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.