Home / 486,977.74-672,027.81-272,118.01

Finding the Fourth Proportional to 486,977.74, 672,027.81 and 272,118.01

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Solution

The fourth proportional to 486,977.74, 672,027.81 and 272,118.01 is: 375,522.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,977.74 : 672,027.81 = 272,118.01 : x
  2. Step 2: Convert to fraction form
    486,977.74/672,027.81 = 272,118.01/x
  3. Step 3: Cross multiply
    486,977.74x = 672,027.81 × 272,118.01
  4. Step 4: Simplify right side
    486,977.74x = 182,870,870,321.86
  5. Step 5: Solve for x
    x = 182,870,870,321.86/486,977.74
  6. Step 6: Final answer
    x = 375,522.03

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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.