Home / 445,114.02-613,922.49-309,148.14

Finding the Fourth Proportional to 445,114.02, 613,922.49 and 309,148.14

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Solution

The fourth proportional to 445,114.02, 613,922.49 and 309,148.14 is: 426,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,114.02 : 613,922.49 = 309,148.14 : x
  2. Step 2: Convert to fraction form
    445,114.02/613,922.49 = 309,148.14/x
  3. Step 3: Cross multiply
    445,114.02x = 613,922.49 × 309,148.14
  4. Step 4: Simplify right side
    445,114.02x = 189,792,995,887.67
  5. Step 5: Solve for x
    x = 189,792,995,887.67/445,114.02
  6. Step 6: Final answer
    x = 426,391.86

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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.