Home / 1,188,009.60-1,782,014.40-739,237.20

Finding the Fourth Proportional to 1,188,009.60, 1,782,014.40 and 739,237.20

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Solution

The fourth proportional to 1,188,009.60, 1,782,014.40 and 739,237.20 is: 1,108,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,009.60 : 1,782,014.40 = 739,237.20 : x
  2. Step 2: Convert to fraction form
    1,188,009.60/1,782,014.40 = 739,237.20/x
  3. Step 3: Cross multiply
    1,188,009.60x = 1,782,014.40 × 739,237.20
  4. Step 4: Simplify right side
    1,188,009.60x = 1,317,331,335,415.68
  5. Step 5: Solve for x
    x = 1,317,331,335,415.68/1,188,009.60
  6. Step 6: Final answer
    x = 1,108,855.80

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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.