Home / 486,967.09-672,012.91-272,107.15

Finding the Fourth Proportional to 486,967.09, 672,012.91 and 272,107.15

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Solution

The fourth proportional to 486,967.09, 672,012.91 and 272,107.15 is: 375,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,967.09 : 672,012.91 = 272,107.15 : x
  2. Step 2: Convert to fraction form
    486,967.09/672,012.91 = 272,107.15/x
  3. Step 3: Cross multiply
    486,967.09x = 672,012.91 × 272,107.15
  4. Step 4: Simplify right side
    486,967.09x = 182,859,514,832.81
  5. Step 5: Solve for x
    x = 182,859,514,832.81/486,967.09
  6. Step 6: Final answer
    x = 375,506.93

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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.