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Finding the Fourth Proportional to 613,049.76, 845,881.88 and 358,351.68

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Solution

The fourth proportional to 613,049.76, 845,881.88 and 358,351.68 is: 494,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,049.76 : 845,881.88 = 358,351.68 : x
  2. Step 2: Convert to fraction form
    613,049.76/845,881.88 = 358,351.68/x
  3. Step 3: Cross multiply
    613,049.76x = 845,881.88 × 358,351.68
  4. Step 4: Simplify right side
    613,049.76x = 303,123,192,779.56
  5. Step 5: Solve for x
    x = 303,123,192,779.56/613,049.76
  6. Step 6: Final answer
    x = 494,451.21

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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.