Home / 1,324,961.51-1,987,163.61-426,483.59

Finding the Fourth Proportional to 1,324,961.51, 1,987,163.61 and 426,483.59

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Solution

The fourth proportional to 1,324,961.51, 1,987,163.61 and 426,483.59 is: 639,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,961.51 : 1,987,163.61 = 426,483.59 : x
  2. Step 2: Convert to fraction form
    1,324,961.51/1,987,163.61 = 426,483.59/x
  3. Step 3: Cross multiply
    1,324,961.51x = 1,987,163.61 × 426,483.59
  4. Step 4: Simplify right side
    1,324,961.51x = 847,492,660,374.34
  5. Step 5: Solve for x
    x = 847,492,660,374.34/1,324,961.51
  6. Step 6: Final answer
    x = 639,635.69

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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.