Home / 384,789.42-531,005.47-215,023.54

Finding the Fourth Proportional to 384,789.42, 531,005.47 and 215,023.54

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Solution

The fourth proportional to 384,789.42, 531,005.47 and 215,023.54 is: 296,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,789.42 : 531,005.47 = 215,023.54 : x
  2. Step 2: Convert to fraction form
    384,789.42/531,005.47 = 215,023.54/x
  3. Step 3: Cross multiply
    384,789.42x = 531,005.47 × 215,023.54
  4. Step 4: Simplify right side
    384,789.42x = 114,178,675,918.76
  5. Step 5: Solve for x
    x = 114,178,675,918.76/384,789.42
  6. Step 6: Final answer
    x = 296,730.29

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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.