Home / 551,541.27-761,203.56-309,842.23

Finding the Fourth Proportional to 551,541.27, 761,203.56 and 309,842.23

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Solution

The fourth proportional to 551,541.27, 761,203.56 and 309,842.23 is: 427,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,541.27 : 761,203.56 = 309,842.23 : x
  2. Step 2: Convert to fraction form
    551,541.27/761,203.56 = 309,842.23/x
  3. Step 3: Cross multiply
    551,541.27x = 761,203.56 × 309,842.23
  4. Step 4: Simplify right side
    551,541.27x = 235,853,008,764.78
  5. Step 5: Solve for x
    x = 235,853,008,764.78/551,541.27
  6. Step 6: Final answer
    x = 427,625.32

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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.