Home / 487,988.15-673,423.52-273,128.22

Finding the Fourth Proportional to 487,988.15, 673,423.52 and 273,128.22

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Solution

The fourth proportional to 487,988.15, 673,423.52 and 273,128.22 is: 376,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,988.15 : 673,423.52 = 273,128.22 : x
  2. Step 2: Convert to fraction form
    487,988.15/673,423.52 = 273,128.22/x
  3. Step 3: Cross multiply
    487,988.15x = 673,423.52 × 273,128.22
  4. Step 4: Simplify right side
    487,988.15x = 183,930,965,958.09
  5. Step 5: Solve for x
    x = 183,930,965,958.09/487,988.15
  6. Step 6: Final answer
    x = 376,916.87

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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.