Home / 1,256,320.80-1,885,064.40-657,957.60

Finding the Fourth Proportional to 1,256,320.80, 1,885,064.40 and 657,957.60

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Solution

The fourth proportional to 1,256,320.80, 1,885,064.40 and 657,957.60 is: 987,241.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,320.80 : 1,885,064.40 = 657,957.60 : x
  2. Step 2: Convert to fraction form
    1,256,320.80/1,885,064.40 = 657,957.60/x
  3. Step 3: Cross multiply
    1,256,320.80x = 1,885,064.40 × 657,957.60
  4. Step 4: Simplify right side
    1,256,320.80x = 1,240,292,448,469.44
  5. Step 5: Solve for x
    x = 1,240,292,448,469.44/1,256,320.80
  6. Step 6: Final answer
    x = 987,241.83

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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.