Home / 1,340,387.80-2,014,728.90-1,315,504.60

Finding the Fourth Proportional to 1,340,387.80, 2,014,728.90 and 1,315,504.60

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Solution

The fourth proportional to 1,340,387.80, 2,014,728.90 and 1,315,504.60 is: 1,977,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,387.80 : 2,014,728.90 = 1,315,504.60 : x
  2. Step 2: Convert to fraction form
    1,340,387.80/2,014,728.90 = 1,315,504.60/x
  3. Step 3: Cross multiply
    1,340,387.80x = 2,014,728.90 × 1,315,504.60
  4. Step 4: Simplify right side
    1,340,387.80x = 2,650,385,135,702.94
  5. Step 5: Solve for x
    x = 2,650,385,135,702.94/1,340,387.80
  6. Step 6: Final answer
    x = 1,977,327.11

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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.