Home / 1,257,270.80-1,735,070.72-890,404.29

Finding the Fourth Proportional to 1,257,270.80, 1,735,070.72 and 890,404.29

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Solution

The fourth proportional to 1,257,270.80, 1,735,070.72 and 890,404.29 is: 1,228,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,270.80 : 1,735,070.72 = 890,404.29 : x
  2. Step 2: Convert to fraction form
    1,257,270.80/1,735,070.72 = 890,404.29/x
  3. Step 3: Cross multiply
    1,257,270.80x = 1,735,070.72 × 890,404.29
  4. Step 4: Simplify right side
    1,257,270.80x = 1,544,914,408,089.37
  5. Step 5: Solve for x
    x = 1,544,914,408,089.37/1,257,270.80
  6. Step 6: Final answer
    x = 1,228,784.14

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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.