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Finding the Fourth Proportional to 415,145.92, 620,444.32 and 303,062.17

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Solution

The fourth proportional to 415,145.92, 620,444.32 and 303,062.17 is: 452,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,145.92 : 620,444.32 = 303,062.17 : x
  2. Step 2: Convert to fraction form
    415,145.92/620,444.32 = 303,062.17/x
  3. Step 3: Cross multiply
    415,145.92x = 620,444.32 × 303,062.17
  4. Step 4: Simplify right side
    415,145.92x = 188,033,201,983.37
  5. Step 5: Solve for x
    x = 188,033,201,983.37/415,145.92
  6. Step 6: Final answer
    x = 452,932.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.