Home / 2,630,406.30-3,938,611.05-1,678,623.90

Finding the Fourth Proportional to 2,630,406.30, 3,938,611.05 and 1,678,623.90

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Solution

The fourth proportional to 2,630,406.30, 3,938,611.05 and 1,678,623.90 is: 2,513,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630,406.30 : 3,938,611.05 = 1,678,623.90 : x
  2. Step 2: Convert to fraction form
    2,630,406.30/3,938,611.05 = 1,678,623.90/x
  3. Step 3: Cross multiply
    2,630,406.30x = 3,938,611.05 × 1,678,623.90
  4. Step 4: Simplify right side
    2,630,406.30x = 6,611,446,641,334.10
  5. Step 5: Solve for x
    x = 6,611,446,641,334.10/2,630,406.30
  6. Step 6: Final answer
    x = 2,513,469.74

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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.