Home / 729,006.74-1,006,029.93-406,716.90

Finding the Fourth Proportional to 729,006.74, 1,006,029.93 and 406,716.90

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Solution

The fourth proportional to 729,006.74, 1,006,029.93 and 406,716.90 is: 561,269.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,006.74 : 1,006,029.93 = 406,716.90 : x
  2. Step 2: Convert to fraction form
    729,006.74/1,006,029.93 = 406,716.90/x
  3. Step 3: Cross multiply
    729,006.74x = 1,006,029.93 × 406,716.90
  4. Step 4: Simplify right side
    729,006.74x = 409,169,374,436.82
  5. Step 5: Solve for x
    x = 409,169,374,436.82/729,006.74
  6. Step 6: Final answer
    x = 561,269.68

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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.