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Finding the Fourth Proportional to 552,124.34, 761,939.42 and 310,393.41

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Solution

The fourth proportional to 552,124.34, 761,939.42 and 310,393.41 is: 428,347.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,124.34 : 761,939.42 = 310,393.41 : x
  2. Step 2: Convert to fraction form
    552,124.34/761,939.42 = 310,393.41/x
  3. Step 3: Cross multiply
    552,124.34x = 761,939.42 × 310,393.41
  4. Step 4: Simplify right side
    552,124.34x = 236,500,974,787.22
  5. Step 5: Solve for x
    x = 236,500,974,787.22/552,124.34
  6. Step 6: Final answer
    x = 428,347.31

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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.