Home / 487,672.17-672,988.58-272,815.82

Finding the Fourth Proportional to 487,672.17, 672,988.58 and 272,815.82

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Solution

The fourth proportional to 487,672.17, 672,988.58 and 272,815.82 is: 376,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,672.17 : 672,988.58 = 272,815.82 : x
  2. Step 2: Convert to fraction form
    487,672.17/672,988.58 = 272,815.82/x
  3. Step 3: Cross multiply
    487,672.17x = 672,988.58 × 272,815.82
  4. Step 4: Simplify right side
    487,672.17x = 183,601,933,667.85
  5. Step 5: Solve for x
    x = 183,601,933,667.85/487,672.17
  6. Step 6: Final answer
    x = 376,486.39

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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.