Home / 729,475.07-1,006,672.86-407,182.34

Finding the Fourth Proportional to 729,475.07, 1,006,672.86 and 407,182.34

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Solution

The fourth proportional to 729,475.07, 1,006,672.86 and 407,182.34 is: 561,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,475.07 : 1,006,672.86 = 407,182.34 : x
  2. Step 2: Convert to fraction form
    729,475.07/1,006,672.86 = 407,182.34/x
  3. Step 3: Cross multiply
    729,475.07x = 1,006,672.86 × 407,182.34
  4. Step 4: Simplify right side
    729,475.07x = 409,899,413,265.98
  5. Step 5: Solve for x
    x = 409,899,413,265.98/729,475.07
  6. Step 6: Final answer
    x = 561,910.11

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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.