Home / 1,464,615.92-2,021,207.52-820,172.32

Finding the Fourth Proportional to 1,464,615.92, 2,021,207.52 and 820,172.32

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Solution

The fourth proportional to 1,464,615.92, 2,021,207.52 and 820,172.32 is: 1,131,858.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464,615.92 : 2,021,207.52 = 820,172.32 : x
  2. Step 2: Convert to fraction form
    1,464,615.92/2,021,207.52 = 820,172.32/x
  3. Step 3: Cross multiply
    1,464,615.92x = 2,021,207.52 × 820,172.32
  4. Step 4: Simplify right side
    1,464,615.92x = 1,657,738,460,879.85
  5. Step 5: Solve for x
    x = 1,657,738,460,879.85/1,464,615.92
  6. Step 6: Final answer
    x = 1,131,858.83

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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.