Home / 849,312.88-1,273,969.30-309,609.62

Finding the Fourth Proportional to 849,312.88, 1,273,969.30 and 309,609.62

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Solution

The fourth proportional to 849,312.88, 1,273,969.30 and 309,609.62 is: 464,414.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,312.88 : 1,273,969.30 = 309,609.62 : x
  2. Step 2: Convert to fraction form
    849,312.88/1,273,969.30 = 309,609.62/x
  3. Step 3: Cross multiply
    849,312.88x = 1,273,969.30 × 309,609.62
  4. Step 4: Simplify right side
    849,312.88x = 394,433,150,864.67
  5. Step 5: Solve for x
    x = 394,433,150,864.67/849,312.88
  6. Step 6: Final answer
    x = 464,414.42

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1.5x scale

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.