Home / 2,078,100.10-3,119,118.45-1,280,938.60

Finding the Fourth Proportional to 2,078,100.10, 3,119,118.45 and 1,280,938.60

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Solution

The fourth proportional to 2,078,100.10, 3,119,118.45 and 1,280,938.60 is: 1,922,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,100.10 : 3,119,118.45 = 1,280,938.60 : x
  2. Step 2: Convert to fraction form
    2,078,100.10/3,119,118.45 = 1,280,938.60/x
  3. Step 3: Cross multiply
    2,078,100.10x = 3,119,118.45 × 1,280,938.60
  4. Step 4: Simplify right side
    2,078,100.10x = 3,995,399,220,577.17
  5. Step 5: Solve for x
    x = 3,995,399,220,577.17/2,078,100.10
  6. Step 6: Final answer
    x = 1,922,621.16

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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.