Home / 1,504,380.75-2,257,648.53-640,421.39

Finding the Fourth Proportional to 1,504,380.75, 2,257,648.53 and 640,421.39

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Solution

The fourth proportional to 1,504,380.75, 2,257,648.53 and 640,421.39 is: 961,090.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504,380.75 : 2,257,648.53 = 640,421.39 : x
  2. Step 2: Convert to fraction form
    1,504,380.75/2,257,648.53 = 640,421.39/x
  3. Step 3: Cross multiply
    1,504,380.75x = 2,257,648.53 × 640,421.39
  4. Step 4: Simplify right side
    1,504,380.75x = 1,445,846,421,677.19
  5. Step 5: Solve for x
    x = 1,445,846,421,677.19/1,504,380.75
  6. Step 6: Final answer
    x = 961,090.75

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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.