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Finding the Fourth Proportional to 425,485.69, 587,364.29 and 303,056.89

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Solution

The fourth proportional to 425,485.69, 587,364.29 and 303,056.89 is: 418,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,485.69 : 587,364.29 = 303,056.89 : x
  2. Step 2: Convert to fraction form
    425,485.69/587,364.29 = 303,056.89/x
  3. Step 3: Cross multiply
    425,485.69x = 587,364.29 × 303,056.89
  4. Step 4: Simplify right side
    425,485.69x = 178,004,795,024.46
  5. Step 5: Solve for x
    x = 178,004,795,024.46/425,485.69
  6. Step 6: Final answer
    x = 418,356.71

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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.