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Finding the Fourth Proportional to 381,690.30, 572,535.45 and 362,007.30

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Solution

The fourth proportional to 381,690.30, 572,535.45 and 362,007.30 is: 543,010.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,690.30 : 572,535.45 = 362,007.30 : x
  2. Step 2: Convert to fraction form
    381,690.30/572,535.45 = 362,007.30/x
  3. Step 3: Cross multiply
    381,690.30x = 572,535.45 × 362,007.30
  4. Step 4: Simplify right side
    381,690.30x = 207,262,012,408.79
  5. Step 5: Solve for x
    x = 207,262,012,408.79/381,690.30
  6. Step 6: Final answer
    x = 543,010.95

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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.