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Finding the Fourth Proportional to 618,491.43, 928,093.95 and 334,182.78

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Solution

The fourth proportional to 618,491.43, 928,093.95 and 334,182.78 is: 501,466.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,491.43 : 928,093.95 = 334,182.78 : x
  2. Step 2: Convert to fraction form
    618,491.43/928,093.95 = 334,182.78/x
  3. Step 3: Cross multiply
    618,491.43x = 928,093.95 × 334,182.78
  4. Step 4: Simplify right side
    618,491.43x = 310,153,016,312.18
  5. Step 5: Solve for x
    x = 310,153,016,312.18/618,491.43
  6. Step 6: Final answer
    x = 501,466.96

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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.