Home / 1,212,708.80-1,822,999.80-860,164.40

Finding the Fourth Proportional to 1,212,708.80, 1,822,999.80 and 860,164.40

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Solution

The fourth proportional to 1,212,708.80, 1,822,999.80 and 860,164.40 is: 1,293,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,708.80 : 1,822,999.80 = 860,164.40 : x
  2. Step 2: Convert to fraction form
    1,212,708.80/1,822,999.80 = 860,164.40/x
  3. Step 3: Cross multiply
    1,212,708.80x = 1,822,999.80 × 860,164.40
  4. Step 4: Simplify right side
    1,212,708.80x = 1,568,079,529,167.12
  5. Step 5: Solve for x
    x = 1,568,079,529,167.12/1,212,708.80
  6. Step 6: Final answer
    x = 1,293,038.80

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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.