Home / 1,960,741.28-2,705,904.32-1,089,572.72

Finding the Fourth Proportional to 1,960,741.28, 2,705,904.32 and 1,089,572.72

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Solution

The fourth proportional to 1,960,741.28, 2,705,904.32 and 1,089,572.72 is: 1,503,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960,741.28 : 2,705,904.32 = 1,089,572.72 : x
  2. Step 2: Convert to fraction form
    1,960,741.28/2,705,904.32 = 1,089,572.72/x
  3. Step 3: Cross multiply
    1,960,741.28x = 2,705,904.32 × 1,089,572.72
  4. Step 4: Simplify right side
    1,960,741.28x = 2,948,279,536,920.26
  5. Step 5: Solve for x
    x = 2,948,279,536,920.26/1,960,741.28
  6. Step 6: Final answer
    x = 1,503,655.56

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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.