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Finding the Fourth Proportional to 404,739.36, 607,003.20 and 120,353.36

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Solution

The fourth proportional to 404,739.36, 607,003.20 and 120,353.36 is: 180,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,739.36 : 607,003.20 = 120,353.36 : x
  2. Step 2: Convert to fraction form
    404,739.36/607,003.20 = 120,353.36/x
  3. Step 3: Cross multiply
    404,739.36x = 607,003.20 × 120,353.36
  4. Step 4: Simplify right side
    404,739.36x = 73,054,871,615.74
  5. Step 5: Solve for x
    x = 73,054,871,615.74/404,739.36
  6. Step 6: Final answer
    x = 180,498.56

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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.