Home / 293,721.90-439,899.69-285,640.68

Finding the Fourth Proportional to 293,721.90, 439,899.69 and 285,640.68

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Solution

The fourth proportional to 293,721.90, 439,899.69 and 285,640.68 is: 427,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,721.90 : 439,899.69 = 285,640.68 : x
  2. Step 2: Convert to fraction form
    293,721.90/439,899.69 = 285,640.68/x
  3. Step 3: Cross multiply
    293,721.90x = 439,899.69 × 285,640.68
  4. Step 4: Simplify right side
    293,721.90x = 125,653,246,583.39
  5. Step 5: Solve for x
    x = 125,653,246,583.39/293,721.90
  6. Step 6: Final answer
    x = 427,796.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.