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Finding the Fourth Proportional to 618,099.17, 852,879.42 and 360,018.59

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Solution

The fourth proportional to 618,099.17, 852,879.42 and 360,018.59 is: 496,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,099.17 : 852,879.42 = 360,018.59 : x
  2. Step 2: Convert to fraction form
    618,099.17/852,879.42 = 360,018.59/x
  3. Step 3: Cross multiply
    618,099.17x = 852,879.42 × 360,018.59
  4. Step 4: Simplify right side
    618,099.17x = 307,052,447,578.49
  5. Step 5: Solve for x
    x = 307,052,447,578.49/618,099.17
  6. Step 6: Final answer
    x = 496,768.90

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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.