Home / 643,832.28-966,696.39-360,078.75

Finding the Fourth Proportional to 643,832.28, 966,696.39 and 360,078.75

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Solution

The fourth proportional to 643,832.28, 966,696.39 and 360,078.75 is: 540,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,832.28 : 966,696.39 = 360,078.75 : x
  2. Step 2: Convert to fraction form
    643,832.28/966,696.39 = 360,078.75/x
  3. Step 3: Cross multiply
    643,832.28x = 966,696.39 × 360,078.75
  4. Step 4: Simplify right side
    643,832.28x = 348,086,827,740.71
  5. Step 5: Solve for x
    x = 348,086,827,740.71/643,832.28
  6. Step 6: Final answer
    x = 540,648.30

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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.