Home / 3,121,012.80-4,681,519.20-1,624,910.40

Finding the Fourth Proportional to 3,121,012.80, 4,681,519.20 and 1,624,910.40

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Solution

The fourth proportional to 3,121,012.80, 4,681,519.20 and 1,624,910.40 is: 2,437,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,012.80 : 4,681,519.20 = 1,624,910.40 : x
  2. Step 2: Convert to fraction form
    3,121,012.80/4,681,519.20 = 1,624,910.40/x
  3. Step 3: Cross multiply
    3,121,012.80x = 4,681,519.20 × 1,624,910.40
  4. Step 4: Simplify right side
    3,121,012.80x = 7,607,049,235,879.68
  5. Step 5: Solve for x
    x = 7,607,049,235,879.68/3,121,012.80
  6. Step 6: Final answer
    x = 2,437,365.60

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1.5x scale

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.