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Finding the Fourth Proportional to 627,169.92, 865,500.64 and 340,692.32

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Solution

The fourth proportional to 627,169.92, 865,500.64 and 340,692.32 is: 470,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,169.92 : 865,500.64 = 340,692.32 : x
  2. Step 2: Convert to fraction form
    627,169.92/865,500.64 = 340,692.32/x
  3. Step 3: Cross multiply
    627,169.92x = 865,500.64 × 340,692.32
  4. Step 4: Simplify right side
    627,169.92x = 294,869,421,003.09
  5. Step 5: Solve for x
    x = 294,869,421,003.09/627,169.92
  6. Step 6: Final answer
    x = 470,158.74

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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.