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Finding the Fourth Proportional to 604,999.44, 905,913.72 and 426,540.24

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Solution

The fourth proportional to 604,999.44, 905,913.72 and 426,540.24 is: 638,692.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,999.44 : 905,913.72 = 426,540.24 : x
  2. Step 2: Convert to fraction form
    604,999.44/905,913.72 = 426,540.24/x
  3. Step 3: Cross multiply
    604,999.44x = 905,913.72 × 426,540.24
  4. Step 4: Simplify right side
    604,999.44x = 386,408,655,548.09
  5. Step 5: Solve for x
    x = 386,408,655,548.09/604,999.44
  6. Step 6: Final answer
    x = 638,692.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.