Home / 1,326,734.89-1,990,091.40-380,106.52

Finding the Fourth Proportional to 1,326,734.89, 1,990,091.40 and 380,106.52

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Solution

The fourth proportional to 1,326,734.89, 1,990,091.40 and 380,106.52 is: 570,156.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,734.89 : 1,990,091.40 = 380,106.52 : x
  2. Step 2: Convert to fraction form
    1,326,734.89/1,990,091.40 = 380,106.52/x
  3. Step 3: Cross multiply
    1,326,734.89x = 1,990,091.40 × 380,106.52
  4. Step 4: Simplify right side
    1,326,734.89x = 756,446,716,535.93
  5. Step 5: Solve for x
    x = 756,446,716,535.93/1,326,734.89
  6. Step 6: Final answer
    x = 570,156.65

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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.