Home / 669,787.60-1,004,665.20-403,346.20

Finding the Fourth Proportional to 669,787.60, 1,004,665.20 and 403,346.20

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Solution

The fourth proportional to 669,787.60, 1,004,665.20 and 403,346.20 is: 605,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,787.60 : 1,004,665.20 = 403,346.20 : x
  2. Step 2: Convert to fraction form
    669,787.60/1,004,665.20 = 403,346.20/x
  3. Step 3: Cross multiply
    669,787.60x = 1,004,665.20 × 403,346.20
  4. Step 4: Simplify right side
    669,787.60x = 405,227,890,692.24
  5. Step 5: Solve for x
    x = 405,227,890,692.24/669,787.60
  6. Step 6: Final answer
    x = 605,009.54

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Double scale
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1.5x scale

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.