Home / 1,391,763.51-1,920,680.92-1,327,990.59

Finding the Fourth Proportional to 1,391,763.51, 1,920,680.92 and 1,327,990.59

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Solution

The fourth proportional to 1,391,763.51, 1,920,680.92 and 1,327,990.59 is: 1,832,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,763.51 : 1,920,680.92 = 1,327,990.59 : x
  2. Step 2: Convert to fraction form
    1,391,763.51/1,920,680.92 = 1,327,990.59/x
  3. Step 3: Cross multiply
    1,391,763.51x = 1,920,680.92 × 1,327,990.59
  4. Step 4: Simplify right side
    1,391,763.51x = 2,550,646,184,832.57
  5. Step 5: Solve for x
    x = 2,550,646,184,832.57/1,391,763.51
  6. Step 6: Final answer
    x = 1,832,672.12

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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.