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Finding the Fourth Proportional to 613,042.76, 845,872.22 and 358,344.68

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Solution

The fourth proportional to 613,042.76, 845,872.22 and 358,344.68 is: 494,441.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,042.76 : 845,872.22 = 358,344.68 : x
  2. Step 2: Convert to fraction form
    613,042.76/845,872.22 = 358,344.68/x
  3. Step 3: Cross multiply
    613,042.76x = 845,872.22 × 358,344.68
  4. Step 4: Simplify right side
    613,042.76x = 303,113,809,996.79
  5. Step 5: Solve for x
    x = 303,113,809,996.79/613,042.76
  6. Step 6: Final answer
    x = 494,441.55

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1.5x scale

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.