Home / 839,916.90-1,258,891.20-629,308.80

Finding the Fourth Proportional to 839,916.90, 1,258,891.20 and 629,308.80

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Solution

The fourth proportional to 839,916.90, 1,258,891.20 and 629,308.80 is: 943,225.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,916.90 : 1,258,891.20 = 629,308.80 : x
  2. Step 2: Convert to fraction form
    839,916.90/1,258,891.20 = 629,308.80/x
  3. Step 3: Cross multiply
    839,916.90x = 1,258,891.20 × 629,308.80
  4. Step 4: Simplify right side
    839,916.90x = 792,231,310,402.56
  5. Step 5: Solve for x
    x = 792,231,310,402.56/839,916.90
  6. Step 6: Final answer
    x = 943,225.82

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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.