Home / 1,307,206.72-1,803,905.97-726,427.90

Finding the Fourth Proportional to 1,307,206.72, 1,803,905.97 and 726,427.90

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Solution

The fourth proportional to 1,307,206.72, 1,803,905.97 and 726,427.90 is: 1,002,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,206.72 : 1,803,905.97 = 726,427.90 : x
  2. Step 2: Convert to fraction form
    1,307,206.72/1,803,905.97 = 726,427.90/x
  3. Step 3: Cross multiply
    1,307,206.72x = 1,803,905.97 × 726,427.90
  4. Step 4: Simplify right side
    1,307,206.72x = 1,310,407,625,584.56
  5. Step 5: Solve for x
    x = 1,310,407,625,584.56/1,307,206.72
  6. Step 6: Final answer
    x = 1,002,448.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.