Home / 1,815,643.23-2,505,720.86-1,299,445.59

Finding the Fourth Proportional to 1,815,643.23, 2,505,720.86 and 1,299,445.59

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Solution

The fourth proportional to 1,815,643.23, 2,505,720.86 and 1,299,445.59 is: 1,793,330.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,643.23 : 2,505,720.86 = 1,299,445.59 : x
  2. Step 2: Convert to fraction form
    1,815,643.23/2,505,720.86 = 1,299,445.59/x
  3. Step 3: Cross multiply
    1,815,643.23x = 2,505,720.86 × 1,299,445.59
  4. Step 4: Simplify right side
    1,815,643.23x = 3,256,047,914,800.78
  5. Step 5: Solve for x
    x = 3,256,047,914,800.78/1,815,643.23
  6. Step 6: Final answer
    x = 1,793,330.24

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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.