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Finding the Fourth Proportional to 559,367.56, 771,928.55 and 304,713.28

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Solution

The fourth proportional to 559,367.56, 771,928.55 and 304,713.28 is: 420,505.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,367.56 : 771,928.55 = 304,713.28 : x
  2. Step 2: Convert to fraction form
    559,367.56/771,928.55 = 304,713.28/x
  3. Step 3: Cross multiply
    559,367.56x = 771,928.55 × 304,713.28
  4. Step 4: Simplify right side
    559,367.56x = 235,216,880,396.14
  5. Step 5: Solve for x
    x = 235,216,880,396.14/559,367.56
  6. Step 6: Final answer
    x = 420,505.04

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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.