Home / 729,856.72-1,007,192.76-407,572.48

Finding the Fourth Proportional to 729,856.72, 1,007,192.76 and 407,572.48

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Solution

The fourth proportional to 729,856.72, 1,007,192.76 and 407,572.48 is: 562,444.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,856.72 : 1,007,192.76 = 407,572.48 : x
  2. Step 2: Convert to fraction form
    729,856.72/1,007,192.76 = 407,572.48/x
  3. Step 3: Cross multiply
    729,856.72x = 1,007,192.76 × 407,572.48
  4. Step 4: Simplify right side
    729,856.72x = 410,504,051,031.25
  5. Step 5: Solve for x
    x = 410,504,051,031.25/729,856.72
  6. Step 6: Final answer
    x = 562,444.71

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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.