Home / 487,678.42-672,997.22-272,822.08

Finding the Fourth Proportional to 487,678.42, 672,997.22 and 272,822.08

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Solution

The fourth proportional to 487,678.42, 672,997.22 and 272,822.08 is: 376,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,678.42 : 672,997.22 = 272,822.08 : x
  2. Step 2: Convert to fraction form
    487,678.42/672,997.22 = 272,822.08/x
  3. Step 3: Cross multiply
    487,678.42x = 672,997.22 × 272,822.08
  4. Step 4: Simplify right side
    487,678.42x = 183,608,501,394.62
  5. Step 5: Solve for x
    x = 183,608,501,394.62/487,678.42
  6. Step 6: Final answer
    x = 376,495.03

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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.