Home / 1,305,621.20-1,958,431.80-744,712.40

Finding the Fourth Proportional to 1,305,621.20, 1,958,431.80 and 744,712.40

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Solution

The fourth proportional to 1,305,621.20, 1,958,431.80 and 744,712.40 is: 1,117,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,621.20 : 1,958,431.80 = 744,712.40 : x
  2. Step 2: Convert to fraction form
    1,305,621.20/1,958,431.80 = 744,712.40/x
  3. Step 3: Cross multiply
    1,305,621.20x = 1,958,431.80 × 744,712.40
  4. Step 4: Simplify right side
    1,305,621.20x = 1,458,468,446,014.32
  5. Step 5: Solve for x
    x = 1,458,468,446,014.32/1,305,621.20
  6. Step 6: Final answer
    x = 1,117,068.60

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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.