Home / 1,368,015.80-2,052,023.70-421,676.60

Finding the Fourth Proportional to 1,368,015.80, 2,052,023.70 and 421,676.60

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Solution

The fourth proportional to 1,368,015.80, 2,052,023.70 and 421,676.60 is: 632,514.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,015.80 : 2,052,023.70 = 421,676.60 : x
  2. Step 2: Convert to fraction form
    1,368,015.80/2,052,023.70 = 421,676.60/x
  3. Step 3: Cross multiply
    1,368,015.80x = 2,052,023.70 × 421,676.60
  4. Step 4: Simplify right side
    1,368,015.80x = 865,290,376,935.42
  5. Step 5: Solve for x
    x = 865,290,376,935.42/1,368,015.80
  6. Step 6: Final answer
    x = 632,514.90

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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.