Home / 379,822.72-569,332.32-143,062.96

Finding the Fourth Proportional to 379,822.72, 569,332.32 and 143,062.96

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Solution

The fourth proportional to 379,822.72, 569,332.32 and 143,062.96 is: 214,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,822.72 : 569,332.32 = 143,062.96 : x
  2. Step 2: Convert to fraction form
    379,822.72/569,332.32 = 143,062.96/x
  3. Step 3: Cross multiply
    379,822.72x = 569,332.32 × 143,062.96
  4. Step 4: Simplify right side
    379,822.72x = 81,450,366,922.87
  5. Step 5: Solve for x
    x = 81,450,366,922.87/379,822.72
  6. Step 6: Final answer
    x = 214,443.11

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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.