Home / 487,265.32-672,423.06-272,404.36

Finding the Fourth Proportional to 487,265.32, 672,423.06 and 272,404.36

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Solution

The fourth proportional to 487,265.32, 672,423.06 and 272,404.36 is: 375,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,265.32 : 672,423.06 = 272,404.36 : x
  2. Step 2: Convert to fraction form
    487,265.32/672,423.06 = 272,404.36/x
  3. Step 3: Cross multiply
    487,265.32x = 672,423.06 × 272,404.36
  4. Step 4: Simplify right side
    487,265.32x = 183,170,973,308.54
  5. Step 5: Solve for x
    x = 183,170,973,308.54/487,265.32
  6. Step 6: Final answer
    x = 375,916.29

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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.