Home / 3,478,830.80-5,218,246.20-2,639,022.80

Finding the Fourth Proportional to 3,478,830.80, 5,218,246.20 and 2,639,022.80

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Solution

The fourth proportional to 3,478,830.80, 5,218,246.20 and 2,639,022.80 is: 3,958,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,830.80 : 5,218,246.20 = 2,639,022.80 : x
  2. Step 2: Convert to fraction form
    3,478,830.80/5,218,246.20 = 2,639,022.80/x
  3. Step 3: Cross multiply
    3,478,830.80x = 5,218,246.20 × 2,639,022.80
  4. Step 4: Simplify right side
    3,478,830.80x = 13,771,070,697,813.36
  5. Step 5: Solve for x
    x = 13,771,070,697,813.36/3,478,830.80
  6. Step 6: Final answer
    x = 3,958,534.20

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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.