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Finding the Fourth Proportional to 464,245.66, 640,938.45 and 303,369.94

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Solution

The fourth proportional to 464,245.66, 640,938.45 and 303,369.94 is: 418,833.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,245.66 : 640,938.45 = 303,369.94 : x
  2. Step 2: Convert to fraction form
    464,245.66/640,938.45 = 303,369.94/x
  3. Step 3: Cross multiply
    464,245.66x = 640,938.45 × 303,369.94
  4. Step 4: Simplify right side
    464,245.66x = 194,441,459,120.19
  5. Step 5: Solve for x
    x = 194,441,459,120.19/464,245.66
  6. Step 6: Final answer
    x = 418,833.12

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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.