Home / 547,274.43-820,353.56-310,116.15

Finding the Fourth Proportional to 547,274.43, 820,353.56 and 310,116.15

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Solution

The fourth proportional to 547,274.43, 820,353.56 and 310,116.15 is: 464,857.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,274.43 : 820,353.56 = 310,116.15 : x
  2. Step 2: Convert to fraction form
    547,274.43/820,353.56 = 310,116.15/x
  3. Step 3: Cross multiply
    547,274.43x = 820,353.56 × 310,116.15
  4. Step 4: Simplify right side
    547,274.43x = 254,404,886,115.41
  5. Step 5: Solve for x
    x = 254,404,886,115.41/547,274.43
  6. Step 6: Final answer
    x = 464,857.98

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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.