Home / 1,210,507.92-1,669,999.46-720,379.35

Finding the Fourth Proportional to 1,210,507.92, 1,669,999.46 and 720,379.35

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Solution

The fourth proportional to 1,210,507.92, 1,669,999.46 and 720,379.35 is: 993,825.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,507.92 : 1,669,999.46 = 720,379.35 : x
  2. Step 2: Convert to fraction form
    1,210,507.92/1,669,999.46 = 720,379.35/x
  3. Step 3: Cross multiply
    1,210,507.92x = 1,669,999.46 × 720,379.35
  4. Step 4: Simplify right side
    1,210,507.92x = 1,203,033,121,893.25
  5. Step 5: Solve for x
    x = 1,203,033,121,893.25/1,210,507.92
  6. Step 6: Final answer
    x = 993,825.07

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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.