Home / 695,225.78-1,042,424.51-215,311.42

Finding the Fourth Proportional to 695,225.78, 1,042,424.51 and 215,311.42

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Solution

The fourth proportional to 695,225.78, 1,042,424.51 and 215,311.42 is: 322,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,225.78 : 1,042,424.51 = 215,311.42 : x
  2. Step 2: Convert to fraction form
    695,225.78/1,042,424.51 = 215,311.42/x
  3. Step 3: Cross multiply
    695,225.78x = 1,042,424.51 × 215,311.42
  4. Step 4: Simplify right side
    695,225.78x = 224,445,897,670.43
  5. Step 5: Solve for x
    x = 224,445,897,670.43/695,225.78
  6. Step 6: Final answer
    x = 322,838.86

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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.