Home / 2,139,740.80-3,209,611.20-957,788.80

Finding the Fourth Proportional to 2,139,740.80, 3,209,611.20 and 957,788.80

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Solution

The fourth proportional to 2,139,740.80, 3,209,611.20 and 957,788.80 is: 1,436,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,740.80 : 3,209,611.20 = 957,788.80 : x
  2. Step 2: Convert to fraction form
    2,139,740.80/3,209,611.20 = 957,788.80/x
  3. Step 3: Cross multiply
    2,139,740.80x = 3,209,611.20 × 957,788.80
  4. Step 4: Simplify right side
    2,139,740.80x = 3,074,129,659,714.56
  5. Step 5: Solve for x
    x = 3,074,129,659,714.56/2,139,740.80
  6. Step 6: Final answer
    x = 1,436,683.20

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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.