Home / 1,236,210.90-1,854,525.69-426,375.42

Finding the Fourth Proportional to 1,236,210.90, 1,854,525.69 and 426,375.42

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Solution

The fourth proportional to 1,236,210.90, 1,854,525.69 and 426,375.42 is: 639,635.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,210.90 : 1,854,525.69 = 426,375.42 : x
  2. Step 2: Convert to fraction form
    1,236,210.90/1,854,525.69 = 426,375.42/x
  3. Step 3: Cross multiply
    1,236,210.90x = 1,854,525.69 × 426,375.42
  4. Step 4: Simplify right side
    1,236,210.90x = 790,724,169,974.54
  5. Step 5: Solve for x
    x = 790,724,169,974.54/1,236,210.90
  6. Step 6: Final answer
    x = 639,635.33

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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.