Home / 3,281,209.20-4,921,813.80-1,686,886.20

Finding the Fourth Proportional to 3,281,209.20, 4,921,813.80 and 1,686,886.20

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Solution

The fourth proportional to 3,281,209.20, 4,921,813.80 and 1,686,886.20 is: 2,530,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281,209.20 : 4,921,813.80 = 1,686,886.20 : x
  2. Step 2: Convert to fraction form
    3,281,209.20/4,921,813.80 = 1,686,886.20/x
  3. Step 3: Cross multiply
    3,281,209.20x = 4,921,813.80 × 1,686,886.20
  4. Step 4: Simplify right side
    3,281,209.20x = 8,302,539,778,189.56
  5. Step 5: Solve for x
    x = 8,302,539,778,189.56/3,281,209.20
  6. Step 6: Final answer
    x = 2,530,329.30

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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.