Home / 2,645,316.72-3,968,485.80-1,128,977.52

Finding the Fourth Proportional to 2,645,316.72, 3,968,485.80 and 1,128,977.52

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Solution

The fourth proportional to 2,645,316.72, 3,968,485.80 and 1,128,977.52 is: 1,693,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645,316.72 : 3,968,485.80 = 1,128,977.52 : x
  2. Step 2: Convert to fraction form
    2,645,316.72/3,968,485.80 = 1,128,977.52/x
  3. Step 3: Cross multiply
    2,645,316.72x = 3,968,485.80 × 1,128,977.52
  4. Step 4: Simplify right side
    2,645,316.72x = 4,480,331,256,639.22
  5. Step 5: Solve for x
    x = 4,480,331,256,639.22/2,645,316.72
  6. Step 6: Final answer
    x = 1,693,684.25

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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.