Home / 1,187,415.36-1,780,043.52-618,127.64

Finding the Fourth Proportional to 1,187,415.36, 1,780,043.52 and 618,127.64

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Solution

The fourth proportional to 1,187,415.36, 1,780,043.52 and 618,127.64 is: 926,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,415.36 : 1,780,043.52 = 618,127.64 : x
  2. Step 2: Convert to fraction form
    1,187,415.36/1,780,043.52 = 618,127.64/x
  3. Step 3: Cross multiply
    1,187,415.36x = 1,780,043.52 × 618,127.64
  4. Step 4: Simplify right side
    1,187,415.36x = 1,100,294,100,114.89
  5. Step 5: Solve for x
    x = 1,100,294,100,114.89/1,187,415.36
  6. Step 6: Final answer
    x = 926,629.50

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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.