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Finding the Fourth Proportional to 636,719.24, 878,702.10 and 350,234.12

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Solution

The fourth proportional to 636,719.24, 878,702.10 and 350,234.12 is: 483,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,719.24 : 878,702.10 = 350,234.12 : x
  2. Step 2: Convert to fraction form
    636,719.24/878,702.10 = 350,234.12/x
  3. Step 3: Cross multiply
    636,719.24x = 878,702.10 × 350,234.12
  4. Step 4: Simplify right side
    636,719.24x = 307,751,456,735.65
  5. Step 5: Solve for x
    x = 307,751,456,735.65/636,719.24
  6. Step 6: Final answer
    x = 483,339.34

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1.5x scale

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.