Home / 1,275,081.16-1,759,685.72-731,212.60

Finding the Fourth Proportional to 1,275,081.16, 1,759,685.72 and 731,212.60

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Solution

The fourth proportional to 1,275,081.16, 1,759,685.72 and 731,212.60 is: 1,009,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,081.16 : 1,759,685.72 = 731,212.60 : x
  2. Step 2: Convert to fraction form
    1,275,081.16/1,759,685.72 = 731,212.60/x
  3. Step 3: Cross multiply
    1,275,081.16x = 1,759,685.72 × 731,212.60
  4. Step 4: Simplify right side
    1,275,081.16x = 1,286,704,370,504.07
  5. Step 5: Solve for x
    x = 1,286,704,370,504.07/1,275,081.16
  6. Step 6: Final answer
    x = 1,009,115.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.