Home / 856,140.66-1,181,428.41-468,936.05

Finding the Fourth Proportional to 856,140.66, 1,181,428.41 and 468,936.05

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Solution

The fourth proportional to 856,140.66, 1,181,428.41 and 468,936.05 is: 647,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,140.66 : 1,181,428.41 = 468,936.05 : x
  2. Step 2: Convert to fraction form
    856,140.66/1,181,428.41 = 468,936.05/x
  3. Step 3: Cross multiply
    856,140.66x = 1,181,428.41 × 468,936.05
  4. Step 4: Simplify right side
    856,140.66x = 554,014,366,036.04
  5. Step 5: Solve for x
    x = 554,014,366,036.04/856,140.66
  6. Step 6: Final answer
    x = 647,106.71

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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.