Home / 729,010.78-1,006,035.50-406,720.94

Finding the Fourth Proportional to 729,010.78, 1,006,035.50 and 406,720.94

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Solution

The fourth proportional to 729,010.78, 1,006,035.50 and 406,720.94 is: 561,275.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,010.78 : 1,006,035.50 = 406,720.94 : x
  2. Step 2: Convert to fraction form
    729,010.78/1,006,035.50 = 406,720.94/x
  3. Step 3: Cross multiply
    729,010.78x = 1,006,035.50 × 406,720.94
  4. Step 4: Simplify right side
    729,010.78x = 409,175,704,233.37
  5. Step 5: Solve for x
    x = 409,175,704,233.37/729,010.78
  6. Step 6: Final answer
    x = 561,275.25

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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.