Home / 752,146.36-1,127,158.74-415,338.64

Finding the Fourth Proportional to 752,146.36, 1,127,158.74 and 415,338.64

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Solution

The fourth proportional to 752,146.36, 1,127,158.74 and 415,338.64 is: 622,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,146.36 : 1,127,158.74 = 415,338.64 : x
  2. Step 2: Convert to fraction form
    752,146.36/1,127,158.74 = 415,338.64/x
  3. Step 3: Cross multiply
    752,146.36x = 1,127,158.74 × 415,338.64
  4. Step 4: Simplify right side
    752,146.36x = 468,152,575,317.82
  5. Step 5: Solve for x
    x = 468,152,575,317.82/752,146.36
  6. Step 6: Final answer
    x = 622,422.18

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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.