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Finding the Fourth Proportional to 560,474.71, 773,473.76 and 305,839.87

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Solution

The fourth proportional to 560,474.71, 773,473.76 and 305,839.87 is: 422,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,474.71 : 773,473.76 = 305,839.87 : x
  2. Step 2: Convert to fraction form
    560,474.71/773,473.76 = 305,839.87/x
  3. Step 3: Cross multiply
    560,474.71x = 773,473.76 × 305,839.87
  4. Step 4: Simplify right side
    560,474.71x = 236,559,111,890.83
  5. Step 5: Solve for x
    x = 236,559,111,890.83/560,474.71
  6. Step 6: Final answer
    x = 422,069.20

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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.