Home / 729,008.29-1,006,032.06-406,718.43

Finding the Fourth Proportional to 729,008.29, 1,006,032.06 and 406,718.43

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Solution

The fourth proportional to 729,008.29, 1,006,032.06 and 406,718.43 is: 561,271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,008.29 : 1,006,032.06 = 406,718.43 : x
  2. Step 2: Convert to fraction form
    729,008.29/1,006,032.06 = 406,718.43/x
  3. Step 3: Cross multiply
    729,008.29x = 1,006,032.06 × 406,718.43
  4. Step 4: Simplify right side
    729,008.29x = 409,171,779,972.87
  5. Step 5: Solve for x
    x = 409,171,779,972.87/729,008.29
  6. Step 6: Final answer
    x = 561,271.78

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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.