Home / 529,066.24-729,614.06-408,015.78

Finding the Fourth Proportional to 529,066.24, 729,614.06 and 408,015.78

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Solution

The fourth proportional to 529,066.24, 729,614.06 and 408,015.78 is: 562,678.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,066.24 : 729,614.06 = 408,015.78 : x
  2. Step 2: Convert to fraction form
    529,066.24/729,614.06 = 408,015.78/x
  3. Step 3: Cross multiply
    529,066.24x = 729,614.06 × 408,015.78
  4. Step 4: Simplify right side
    529,066.24x = 297,694,049,789.87
  5. Step 5: Solve for x
    x = 297,694,049,789.87/529,066.24
  6. Step 6: Final answer
    x = 562,678.22

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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.