Home / 2,078,008.60-3,118,981.20-1,280,847.10

Finding the Fourth Proportional to 2,078,008.60, 3,118,981.20 and 1,280,847.10

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Solution

The fourth proportional to 2,078,008.60, 3,118,981.20 and 1,280,847.10 is: 1,922,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,008.60 : 3,118,981.20 = 1,280,847.10 : x
  2. Step 2: Convert to fraction form
    2,078,008.60/3,118,981.20 = 1,280,847.10/x
  3. Step 3: Cross multiply
    2,078,008.60x = 3,118,981.20 × 1,280,847.10
  4. Step 4: Simplify right side
    2,078,008.60x = 3,994,938,024,974.52
  5. Step 5: Solve for x
    x = 3,994,938,024,974.52/2,078,008.60
  6. Step 6: Final answer
    x = 1,922,483.87

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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.