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Finding the Fourth Proportional to 415,184.64, 620,502.17 and 303,100.89

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Solution

The fourth proportional to 415,184.64, 620,502.17 and 303,100.89 is: 452,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,184.64 : 620,502.17 = 303,100.89 : x
  2. Step 2: Convert to fraction form
    415,184.64/620,502.17 = 303,100.89/x
  3. Step 3: Cross multiply
    415,184.64x = 620,502.17 × 303,100.89
  4. Step 4: Simplify right side
    415,184.64x = 188,074,757,836.49
  5. Step 5: Solve for x
    x = 188,074,757,836.49/415,184.64
  6. Step 6: Final answer
    x = 452,990.65

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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.