Home / 1,354,940.28-1,869,682.86-782,164.98

Finding the Fourth Proportional to 1,354,940.28, 1,869,682.86 and 782,164.98

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Solution

The fourth proportional to 1,354,940.28, 1,869,682.86 and 782,164.98 is: 1,079,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,940.28 : 1,869,682.86 = 782,164.98 : x
  2. Step 2: Convert to fraction form
    1,354,940.28/1,869,682.86 = 782,164.98/x
  3. Step 3: Cross multiply
    1,354,940.28x = 1,869,682.86 × 782,164.98
  4. Step 4: Simplify right side
    1,354,940.28x = 1,462,400,456,798.24
  5. Step 5: Solve for x
    x = 1,462,400,456,798.24/1,354,940.28
  6. Step 6: Final answer
    x = 1,079,309.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.