Home / 1,230,982.40-1,845,091.20-520,889.60

Finding the Fourth Proportional to 1,230,982.40, 1,845,091.20 and 520,889.60

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Solution

The fourth proportional to 1,230,982.40, 1,845,091.20 and 520,889.60 is: 780,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,982.40 : 1,845,091.20 = 520,889.60 : x
  2. Step 2: Convert to fraction form
    1,230,982.40/1,845,091.20 = 520,889.60/x
  3. Step 3: Cross multiply
    1,230,982.40x = 1,845,091.20 × 520,889.60
  4. Step 4: Simplify right side
    1,230,982.40x = 961,088,817,131.52
  5. Step 5: Solve for x
    x = 961,088,817,131.52/1,230,982.40
  6. Step 6: Final answer
    x = 780,749.44

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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.