Home / 487,678.67-672,997.56-272,822.33

Finding the Fourth Proportional to 487,678.67, 672,997.56 and 272,822.33

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Solution

The fourth proportional to 487,678.67, 672,997.56 and 272,822.33 is: 376,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,678.67 : 672,997.56 = 272,822.33 : x
  2. Step 2: Convert to fraction form
    487,678.67/672,997.56 = 272,822.33/x
  3. Step 3: Cross multiply
    487,678.67x = 672,997.56 × 272,822.33
  4. Step 4: Simplify right side
    487,678.67x = 183,608,762,403.52
  5. Step 5: Solve for x
    x = 183,608,762,403.52/487,678.67
  6. Step 6: Final answer
    x = 376,495.37

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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.