Home / 1,340,390.80-2,014,733.40-1,315,507.60

Finding the Fourth Proportional to 1,340,390.80, 2,014,733.40 and 1,315,507.60

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Solution

The fourth proportional to 1,340,390.80, 2,014,733.40 and 1,315,507.60 is: 1,977,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,390.80 : 2,014,733.40 = 1,315,507.60 : x
  2. Step 2: Convert to fraction form
    1,340,390.80/2,014,733.40 = 1,315,507.60/x
  3. Step 3: Cross multiply
    1,340,390.80x = 2,014,733.40 × 1,315,507.60
  4. Step 4: Simplify right side
    1,340,390.80x = 2,650,397,099,673.84
  5. Step 5: Solve for x
    x = 2,650,397,099,673.84/1,340,390.80
  6. Step 6: Final answer
    x = 1,977,331.61

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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.