Home / 621,723.24-857,942.82-349,802.64

Finding the Fourth Proportional to 621,723.24, 857,942.82 and 349,802.64

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Solution

The fourth proportional to 621,723.24, 857,942.82 and 349,802.64 is: 482,707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,723.24 : 857,942.82 = 349,802.64 : x
  2. Step 2: Convert to fraction form
    621,723.24/857,942.82 = 349,802.64/x
  3. Step 3: Cross multiply
    621,723.24x = 857,942.82 × 349,802.64
  4. Step 4: Simplify right side
    621,723.24x = 300,110,663,405.05
  5. Step 5: Solve for x
    x = 300,110,663,405.05/621,723.24
  6. Step 6: Final answer
    x = 482,707.81

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1.5x scale

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.