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Finding the Fourth Proportional to 440,705.08, 607,949.15 and 287,832.83

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Solution

The fourth proportional to 440,705.08, 607,949.15 and 287,832.83 is: 397,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,705.08 : 607,949.15 = 287,832.83 : x
  2. Step 2: Convert to fraction form
    440,705.08/607,949.15 = 287,832.83/x
  3. Step 3: Cross multiply
    440,705.08x = 607,949.15 × 287,832.83
  4. Step 4: Simplify right side
    440,705.08x = 174,987,724,340.60
  5. Step 5: Solve for x
    x = 174,987,724,340.60/440,705.08
  6. Step 6: Final answer
    x = 397,063.10

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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.