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Finding the Fourth Proportional to 379,573.07, 523,471.52 and 314,939.93

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Solution

The fourth proportional to 379,573.07, 523,471.52 and 314,939.93 is: 434,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,573.07 : 523,471.52 = 314,939.93 : x
  2. Step 2: Convert to fraction form
    379,573.07/523,471.52 = 314,939.93/x
  3. Step 3: Cross multiply
    379,573.07x = 523,471.52 × 314,939.93
  4. Step 4: Simplify right side
    379,573.07x = 164,862,082,035.79
  5. Step 5: Solve for x
    x = 164,862,082,035.79/379,573.07
  6. Step 6: Final answer
    x = 434,335.57

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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.