Home / 1,188,218.40-1,782,327.60-684,333.60

Finding the Fourth Proportional to 1,188,218.40, 1,782,327.60 and 684,333.60

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Solution

The fourth proportional to 1,188,218.40, 1,782,327.60 and 684,333.60 is: 1,026,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,218.40 : 1,782,327.60 = 684,333.60 : x
  2. Step 2: Convert to fraction form
    1,188,218.40/1,782,327.60 = 684,333.60/x
  3. Step 3: Cross multiply
    1,188,218.40x = 1,782,327.60 × 684,333.60
  4. Step 4: Simplify right side
    1,188,218.40x = 1,219,706,662,887.36
  5. Step 5: Solve for x
    x = 1,219,706,662,887.36/1,188,218.40
  6. Step 6: Final answer
    x = 1,026,500.40

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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.