Home / 1,970,611.28-2,719,212.48-1,111,120.32

Finding the Fourth Proportional to 1,970,611.28, 2,719,212.48 and 1,111,120.32

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Solution

The fourth proportional to 1,970,611.28, 2,719,212.48 and 1,111,120.32 is: 1,533,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,611.28 : 2,719,212.48 = 1,111,120.32 : x
  2. Step 2: Convert to fraction form
    1,970,611.28/2,719,212.48 = 1,111,120.32/x
  3. Step 3: Cross multiply
    1,970,611.28x = 2,719,212.48 × 1,111,120.32
  4. Step 4: Simplify right side
    1,970,611.28x = 3,021,372,240,925.59
  5. Step 5: Solve for x
    x = 3,021,372,240,925.59/1,970,611.28
  6. Step 6: Final answer
    x = 1,533,215.74

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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.