Home / 729,997.79-1,007,297.42-407,666.79

Finding the Fourth Proportional to 729,997.79, 1,007,297.42 and 407,666.79

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Solution

The fourth proportional to 729,997.79, 1,007,297.42 and 407,666.79 is: 562,524.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,997.79 : 1,007,297.42 = 407,666.79 : x
  2. Step 2: Convert to fraction form
    729,997.79/1,007,297.42 = 407,666.79/x
  3. Step 3: Cross multiply
    729,997.79x = 1,007,297.42 × 407,666.79
  4. Step 4: Simplify right side
    729,997.79x = 410,641,703,748.35
  5. Step 5: Solve for x
    x = 410,641,703,748.35/729,997.79
  6. Step 6: Final answer
    x = 562,524.59

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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.