Home / 756,300.88-1,043,681.70-412,139.80

Finding the Fourth Proportional to 756,300.88, 1,043,681.70 and 412,139.80

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Solution

The fourth proportional to 756,300.88, 1,043,681.70 and 412,139.80 is: 568,745.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,300.88 : 1,043,681.70 = 412,139.80 : x
  2. Step 2: Convert to fraction form
    756,300.88/1,043,681.70 = 412,139.80/x
  3. Step 3: Cross multiply
    756,300.88x = 1,043,681.70 × 412,139.80
  4. Step 4: Simplify right side
    756,300.88x = 430,142,767,101.66
  5. Step 5: Solve for x
    x = 430,142,767,101.66/756,300.88
  6. Step 6: Final answer
    x = 568,745.56

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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.