Home / 729,259.92-1,006,429.26-407,032.80

Finding the Fourth Proportional to 729,259.92, 1,006,429.26 and 407,032.80

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Solution

The fourth proportional to 729,259.92, 1,006,429.26 and 407,032.80 is: 561,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,259.92 : 1,006,429.26 = 407,032.80 : x
  2. Step 2: Convert to fraction form
    729,259.92/1,006,429.26 = 407,032.80/x
  3. Step 3: Cross multiply
    729,259.92x = 1,006,429.26 × 407,032.80
  4. Step 4: Simplify right side
    729,259.92x = 409,649,719,699.73
  5. Step 5: Solve for x
    x = 409,649,719,699.73/729,259.92
  6. Step 6: Final answer
    x = 561,733.49

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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.