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Finding the Fourth Proportional to 559,692.75, 772,376.01 and 305,044.56

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Solution

The fourth proportional to 559,692.75, 772,376.01 and 305,044.56 is: 420,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,692.75 : 772,376.01 = 305,044.56 : x
  2. Step 2: Convert to fraction form
    559,692.75/772,376.01 = 305,044.56/x
  3. Step 3: Cross multiply
    559,692.75x = 772,376.01 × 305,044.56
  4. Step 4: Simplify right side
    559,692.75x = 235,609,100,125.01
  5. Step 5: Solve for x
    x = 235,609,100,125.01/559,692.75
  6. Step 6: Final answer
    x = 420,961.50

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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.