Home / 2,187,074.40-3,280,611.60-1,242,290.40

Finding the Fourth Proportional to 2,187,074.40, 3,280,611.60 and 1,242,290.40

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Solution

The fourth proportional to 2,187,074.40, 3,280,611.60 and 1,242,290.40 is: 1,863,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,074.40 : 3,280,611.60 = 1,242,290.40 : x
  2. Step 2: Convert to fraction form
    2,187,074.40/3,280,611.60 = 1,242,290.40/x
  3. Step 3: Cross multiply
    2,187,074.40x = 3,280,611.60 × 1,242,290.40
  4. Step 4: Simplify right side
    2,187,074.40x = 4,075,472,296,808.64
  5. Step 5: Solve for x
    x = 4,075,472,296,808.64/2,187,074.40
  6. Step 6: Final answer
    x = 1,863,435.60

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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.