Home / 729,286.48-1,006,465.80-407,059.48

Finding the Fourth Proportional to 729,286.48, 1,006,465.80 and 407,059.48

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Solution

The fourth proportional to 729,286.48, 1,006,465.80 and 407,059.48 is: 561,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,286.48 : 1,006,465.80 = 407,059.48 : x
  2. Step 2: Convert to fraction form
    729,286.48/1,006,465.80 = 407,059.48/x
  3. Step 3: Cross multiply
    729,286.48x = 1,006,465.80 × 407,059.48
  4. Step 4: Simplify right side
    729,286.48x = 409,691,445,185.78
  5. Step 5: Solve for x
    x = 409,691,445,185.78/729,286.48
  6. Step 6: Final answer
    x = 561,770.25

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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.