Home / 487,022.27-672,088.78-272,162.28

Finding the Fourth Proportional to 487,022.27, 672,088.78 and 272,162.28

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Solution

The fourth proportional to 487,022.27, 672,088.78 and 272,162.28 is: 375,582.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,022.27 : 672,088.78 = 272,162.28 : x
  2. Step 2: Convert to fraction form
    487,022.27/672,088.78 = 272,162.28/x
  3. Step 3: Cross multiply
    487,022.27x = 672,088.78 × 272,162.28
  4. Step 4: Simplify right side
    487,022.27x = 182,917,214,727.22
  5. Step 5: Solve for x
    x = 182,917,214,727.22/487,022.27
  6. Step 6: Final answer
    x = 375,582.86

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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.