Home / 1,057,117.78-1,585,680.30-309,163.78

Finding the Fourth Proportional to 1,057,117.78, 1,585,680.30 and 309,163.78

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Solution

The fourth proportional to 1,057,117.78, 1,585,680.30 and 309,163.78 is: 463,746.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,117.78 : 1,585,680.30 = 309,163.78 : x
  2. Step 2: Convert to fraction form
    1,057,117.78/1,585,680.30 = 309,163.78/x
  3. Step 3: Cross multiply
    1,057,117.78x = 1,585,680.30 × 309,163.78
  4. Step 4: Simplify right side
    1,057,117.78x = 490,234,915,419.53
  5. Step 5: Solve for x
    x = 490,234,915,419.53/1,057,117.78
  6. Step 6: Final answer
    x = 463,746.73

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Double scale
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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.