Home / 1,408,786.80-2,109,447.72-742,539.12

Finding the Fourth Proportional to 1,408,786.80, 2,109,447.72 and 742,539.12

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Solution

The fourth proportional to 1,408,786.80, 2,109,447.72 and 742,539.12 is: 1,111,841.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,786.80 : 2,109,447.72 = 742,539.12 : x
  2. Step 2: Convert to fraction form
    1,408,786.80/2,109,447.72 = 742,539.12/x
  3. Step 3: Cross multiply
    1,408,786.80x = 2,109,447.72 × 742,539.12
  4. Step 4: Simplify right side
    1,408,786.80x = 1,566,347,453,694.81
  5. Step 5: Solve for x
    x = 1,566,347,453,694.81/1,408,786.80
  6. Step 6: Final answer
    x = 1,111,841.38

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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.