Home / 1,270,722.31-1,905,660.59-512,367.91

Finding the Fourth Proportional to 1,270,722.31, 1,905,660.59 and 512,367.91

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Solution

The fourth proportional to 1,270,722.31, 1,905,660.59 and 512,367.91 is: 768,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,722.31 : 1,905,660.59 = 512,367.91 : x
  2. Step 2: Convert to fraction form
    1,270,722.31/1,905,660.59 = 512,367.91/x
  3. Step 3: Cross multiply
    1,270,722.31x = 1,905,660.59 × 512,367.91
  4. Step 4: Simplify right side
    1,270,722.31x = 976,399,325,420.28
  5. Step 5: Solve for x
    x = 976,399,325,420.28/1,270,722.31
  6. Step 6: Final answer
    x = 768,381.35

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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.