Home / 1,305,403.20-1,958,104.80-744,494.40

Finding the Fourth Proportional to 1,305,403.20, 1,958,104.80 and 744,494.40

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Solution

The fourth proportional to 1,305,403.20, 1,958,104.80 and 744,494.40 is: 1,116,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,403.20 : 1,958,104.80 = 744,494.40 : x
  2. Step 2: Convert to fraction form
    1,305,403.20/1,958,104.80 = 744,494.40/x
  3. Step 3: Cross multiply
    1,305,403.20x = 1,958,104.80 × 744,494.40
  4. Step 4: Simplify right side
    1,305,403.20x = 1,457,798,058,213.12
  5. Step 5: Solve for x
    x = 1,457,798,058,213.12/1,305,403.20
  6. Step 6: Final answer
    x = 1,116,741.60

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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.