Home / 1,642,212.80-2,462,807.20-645,246.40

Finding the Fourth Proportional to 1,642,212.80, 2,462,807.20 and 645,246.40

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Solution

The fourth proportional to 1,642,212.80, 2,462,807.20 and 645,246.40 is: 967,668.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,212.80 : 2,462,807.20 = 645,246.40 : x
  2. Step 2: Convert to fraction form
    1,642,212.80/2,462,807.20 = 645,246.40/x
  3. Step 3: Cross multiply
    1,642,212.80x = 2,462,807.20 × 645,246.40
  4. Step 4: Simplify right side
    1,642,212.80x = 1,589,117,479,694.08
  5. Step 5: Solve for x
    x = 1,589,117,479,694.08/1,642,212.80
  6. Step 6: Final answer
    x = 967,668.43

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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.