Home / 729,013.50-1,006,067.79-406,751.76

Finding the Fourth Proportional to 729,013.50, 1,006,067.79 and 406,751.76

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Solution

The fourth proportional to 729,013.50, 1,006,067.79 and 406,751.76 is: 561,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,013.50 : 1,006,067.79 = 406,751.76 : x
  2. Step 2: Convert to fraction form
    729,013.50/1,006,067.79 = 406,751.76/x
  3. Step 3: Cross multiply
    729,013.50x = 1,006,067.79 × 406,751.76
  4. Step 4: Simplify right side
    729,013.50x = 409,219,844,261.81
  5. Step 5: Solve for x
    x = 409,219,844,261.81/729,013.50
  6. Step 6: Final answer
    x = 561,333.70

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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.