Home / 729,309.48-1,006,406.14-407,040.34

Finding the Fourth Proportional to 729,309.48, 1,006,406.14 and 407,040.34

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Solution

The fourth proportional to 729,309.48, 1,006,406.14 and 407,040.34 is: 561,692.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,309.48 : 1,006,406.14 = 407,040.34 : x
  2. Step 2: Convert to fraction form
    729,309.48/1,006,406.14 = 407,040.34/x
  3. Step 3: Cross multiply
    729,309.48x = 1,006,406.14 × 407,040.34
  4. Step 4: Simplify right side
    729,309.48x = 409,647,897,665.09
  5. Step 5: Solve for x
    x = 409,647,897,665.09/729,309.48
  6. Step 6: Final answer
    x = 561,692.82

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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.