Home / 1,326,736.96-1,990,094.49-380,108.59

Finding the Fourth Proportional to 1,326,736.96, 1,990,094.49 and 380,108.59

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Solution

The fourth proportional to 1,326,736.96, 1,990,094.49 and 380,108.59 is: 570,159.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,736.96 : 1,990,094.49 = 380,108.59 : x
  2. Step 2: Convert to fraction form
    1,326,736.96/1,990,094.49 = 380,108.59/x
  3. Step 3: Cross multiply
    1,326,736.96x = 1,990,094.49 × 380,108.59
  4. Step 4: Simplify right side
    1,326,736.96x = 756,452,010,560.67
  5. Step 5: Solve for x
    x = 756,452,010,560.67/1,326,736.96
  6. Step 6: Final answer
    x = 570,159.75

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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.