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Finding the Fourth Proportional to 360,785.30, 542,490.15 and 352,912.10

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Solution

The fourth proportional to 360,785.30, 542,490.15 and 352,912.10 is: 530,651.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,785.30 : 542,490.15 = 352,912.10 : x
  2. Step 2: Convert to fraction form
    360,785.30/542,490.15 = 352,912.10/x
  3. Step 3: Cross multiply
    360,785.30x = 542,490.15 × 352,912.10
  4. Step 4: Simplify right side
    360,785.30x = 191,451,338,065.82
  5. Step 5: Solve for x
    x = 191,451,338,065.82/360,785.30
  6. Step 6: Final answer
    x = 530,651.71

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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.