Home / 729,464.27-1,006,676.51-402,776.15

Finding the Fourth Proportional to 729,464.27, 1,006,676.51 and 402,776.15

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Solution

The fourth proportional to 729,464.27, 1,006,676.51 and 402,776.15 is: 555,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,464.27 : 1,006,676.51 = 402,776.15 : x
  2. Step 2: Convert to fraction form
    729,464.27/1,006,676.51 = 402,776.15/x
  3. Step 3: Cross multiply
    729,464.27x = 1,006,676.51 × 402,776.15
  4. Step 4: Simplify right side
    729,464.27x = 405,465,281,945.97
  5. Step 5: Solve for x
    x = 405,465,281,945.97/729,464.27
  6. Step 6: Final answer
    x = 555,839.81

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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.