Home / 1,257,266.30-1,735,064.49-890,399.78

Finding the Fourth Proportional to 1,257,266.30, 1,735,064.49 and 890,399.78

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Solution

The fourth proportional to 1,257,266.30, 1,735,064.49 and 890,399.78 is: 1,228,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,266.30 : 1,735,064.49 = 890,399.78 : x
  2. Step 2: Convert to fraction form
    1,257,266.30/1,735,064.49 = 890,399.78/x
  3. Step 3: Cross multiply
    1,257,266.30x = 1,735,064.49 × 890,399.78
  4. Step 4: Simplify right side
    1,257,266.30x = 1,544,901,031,506.49
  5. Step 5: Solve for x
    x = 1,544,901,031,506.49/1,257,266.30
  6. Step 6: Final answer
    x = 1,228,777.90

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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.