Home / 487,500.26-672,730.43-283,557.02

Finding the Fourth Proportional to 487,500.26, 672,730.43 and 283,557.02

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Solution

The fourth proportional to 487,500.26, 672,730.43 and 283,557.02 is: 391,297.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,500.26 : 672,730.43 = 283,557.02 : x
  2. Step 2: Convert to fraction form
    487,500.26/672,730.43 = 283,557.02/x
  3. Step 3: Cross multiply
    487,500.26x = 672,730.43 × 283,557.02
  4. Step 4: Simplify right side
    487,500.26x = 190,757,431,212.68
  5. Step 5: Solve for x
    x = 190,757,431,212.68/487,500.26
  6. Step 6: Final answer
    x = 391,297.09

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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.