Home / 1,270,725.75-1,905,665.79-512,371.35

Finding the Fourth Proportional to 1,270,725.75, 1,905,665.79 and 512,371.35

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Solution

The fourth proportional to 1,270,725.75, 1,905,665.79 and 512,371.35 is: 768,386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,725.75 : 1,905,665.79 = 512,371.35 : x
  2. Step 2: Convert to fraction form
    1,270,725.75/1,905,665.79 = 512,371.35/x
  3. Step 3: Cross multiply
    1,270,725.75x = 1,905,665.79 × 512,371.35
  4. Step 4: Simplify right side
    1,270,725.75x = 976,408,553,471.12
  5. Step 5: Solve for x
    x = 976,408,553,471.12/1,270,725.75
  6. Step 6: Final answer
    x = 768,386.53

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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.