Home / 1,412,278.80-2,118,418.20-465,421.20

Finding the Fourth Proportional to 1,412,278.80, 2,118,418.20 and 465,421.20

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Solution

The fourth proportional to 1,412,278.80, 2,118,418.20 and 465,421.20 is: 698,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,278.80 : 2,118,418.20 = 465,421.20 : x
  2. Step 2: Convert to fraction form
    1,412,278.80/2,118,418.20 = 465,421.20/x
  3. Step 3: Cross multiply
    1,412,278.80x = 2,118,418.20 × 465,421.20
  4. Step 4: Simplify right side
    1,412,278.80x = 985,956,740,745.84
  5. Step 5: Solve for x
    x = 985,956,740,745.84/1,412,278.80
  6. Step 6: Final answer
    x = 698,131.80

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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.