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Finding the Fourth Proportional to 559,657.80, 839,486.70 and 322,878.60

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Solution

The fourth proportional to 559,657.80, 839,486.70 and 322,878.60 is: 484,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,657.80 : 839,486.70 = 322,878.60 : x
  2. Step 2: Convert to fraction form
    559,657.80/839,486.70 = 322,878.60/x
  3. Step 3: Cross multiply
    559,657.80x = 839,486.70 × 322,878.60
  4. Step 4: Simplify right side
    559,657.80x = 271,052,290,414.62
  5. Step 5: Solve for x
    x = 271,052,290,414.62/559,657.80
  6. Step 6: Final answer
    x = 484,317.90

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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.