Home / 1,259,418.31-1,889,315.19-406,209.47

Finding the Fourth Proportional to 1,259,418.31, 1,889,315.19 and 406,209.47

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Solution

The fourth proportional to 1,259,418.31, 1,889,315.19 and 406,209.47 is: 609,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,418.31 : 1,889,315.19 = 406,209.47 : x
  2. Step 2: Convert to fraction form
    1,259,418.31/1,889,315.19 = 406,209.47/x
  3. Step 3: Cross multiply
    1,259,418.31x = 1,889,315.19 × 406,209.47
  4. Step 4: Simplify right side
    1,259,418.31x = 767,457,712,546.27
  5. Step 5: Solve for x
    x = 767,457,712,546.27/1,259,418.31
  6. Step 6: Final answer
    x = 609,374.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.