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Finding the Fourth Proportional to 607,027.20, 909,811.80 and 251,858.40

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Solution

The fourth proportional to 607,027.20, 909,811.80 and 251,858.40 is: 377,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,027.20 : 909,811.80 = 251,858.40 : x
  2. Step 2: Convert to fraction form
    607,027.20/909,811.80 = 251,858.40/x
  3. Step 3: Cross multiply
    607,027.20x = 909,811.80 × 251,858.40
  4. Step 4: Simplify right side
    607,027.20x = 229,143,744,249.12
  5. Step 5: Solve for x
    x = 229,143,744,249.12/607,027.20
  6. Step 6: Final answer
    x = 377,485.13

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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.