Home / 669,259.30-1,004,666.55-403,320.10

Finding the Fourth Proportional to 669,259.30, 1,004,666.55 and 403,320.10

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Solution

The fourth proportional to 669,259.30, 1,004,666.55 and 403,320.10 is: 605,448.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,259.30 : 1,004,666.55 = 403,320.10 : x
  2. Step 2: Convert to fraction form
    669,259.30/1,004,666.55 = 403,320.10/x
  3. Step 3: Cross multiply
    669,259.30x = 1,004,666.55 × 403,320.10
  4. Step 4: Simplify right side
    669,259.30x = 405,202,213,412.66
  5. Step 5: Solve for x
    x = 405,202,213,412.66/669,259.30
  6. Step 6: Final answer
    x = 605,448.76

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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.