Home / 1,618,095.80-2,428,698.90-820,278.20

Finding the Fourth Proportional to 1,618,095.80, 2,428,698.90 and 820,278.20

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Solution

The fourth proportional to 1,618,095.80, 2,428,698.90 and 820,278.20 is: 1,231,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,095.80 : 2,428,698.90 = 820,278.20 : x
  2. Step 2: Convert to fraction form
    1,618,095.80/2,428,698.90 = 820,278.20/x
  3. Step 3: Cross multiply
    1,618,095.80x = 2,428,698.90 × 820,278.20
  4. Step 4: Simplify right side
    1,618,095.80x = 1,992,208,762,033.98
  5. Step 5: Solve for x
    x = 1,992,208,762,033.98/1,618,095.80
  6. Step 6: Final answer
    x = 1,231,205.69

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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.