Home / 669,795.10-1,004,676.45-403,353.70

Finding the Fourth Proportional to 669,795.10, 1,004,676.45 and 403,353.70

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Solution

The fourth proportional to 669,795.10, 1,004,676.45 and 403,353.70 is: 605,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,795.10 : 1,004,676.45 = 403,353.70 : x
  2. Step 2: Convert to fraction form
    669,795.10/1,004,676.45 = 403,353.70/x
  3. Step 3: Cross multiply
    669,795.10x = 1,004,676.45 × 403,353.70
  4. Step 4: Simplify right side
    669,795.10x = 405,239,963,410.37
  5. Step 5: Solve for x
    x = 405,239,963,410.37/669,795.10
  6. Step 6: Final answer
    x = 605,020.79

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Double scale
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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.