Home / 729,864.86-1,007,211.54-407,572.34

Finding the Fourth Proportional to 729,864.86, 1,007,211.54 and 407,572.34

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Solution

The fourth proportional to 729,864.86, 1,007,211.54 and 407,572.34 is: 562,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,864.86 : 1,007,211.54 = 407,572.34 : x
  2. Step 2: Convert to fraction form
    729,864.86/1,007,211.54 = 407,572.34/x
  3. Step 3: Cross multiply
    729,864.86x = 1,007,211.54 × 407,572.34
  4. Step 4: Simplify right side
    729,864.86x = 410,511,564,232.80
  5. Step 5: Solve for x
    x = 410,511,564,232.80/729,864.86
  6. Step 6: Final answer
    x = 562,448.73

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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.