Home / 669,359.30-1,004,816.55-403,420.10

Finding the Fourth Proportional to 669,359.30, 1,004,816.55 and 403,420.10

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Solution

The fourth proportional to 669,359.30, 1,004,816.55 and 403,420.10 is: 605,598.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,359.30 : 1,004,816.55 = 403,420.10 : x
  2. Step 2: Convert to fraction form
    669,359.30/1,004,816.55 = 403,420.10/x
  3. Step 3: Cross multiply
    669,359.30x = 1,004,816.55 × 403,420.10
  4. Step 4: Simplify right side
    669,359.30x = 405,363,193,082.66
  5. Step 5: Solve for x
    x = 405,363,193,082.66/669,359.30
  6. Step 6: Final answer
    x = 605,598.81

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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.