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Finding the Fourth Proportional to 607,138.60, 851,238.20 and 607,138.60

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Solution

The fourth proportional to 607,138.60, 851,238.20 and 607,138.60 is: 851,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,138.60 : 851,238.20 = 607,138.60 : x
  2. Step 2: Convert to fraction form
    607,138.60/851,238.20 = 607,138.60/x
  3. Step 3: Cross multiply
    607,138.60x = 851,238.20 × 607,138.60
  4. Step 4: Simplify right side
    607,138.60x = 516,819,569,014.52
  5. Step 5: Solve for x
    x = 516,819,569,014.52/607,138.60
  6. Step 6: Final answer
    x = 851,238.20

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.