Home / 2,190,940.60-3,286,410.90-770,985.40

Finding the Fourth Proportional to 2,190,940.60, 3,286,410.90 and 770,985.40

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Solution

The fourth proportional to 2,190,940.60, 3,286,410.90 and 770,985.40 is: 1,156,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,940.60 : 3,286,410.90 = 770,985.40 : x
  2. Step 2: Convert to fraction form
    2,190,940.60/3,286,410.90 = 770,985.40/x
  3. Step 3: Cross multiply
    2,190,940.60x = 3,286,410.90 × 770,985.40
  4. Step 4: Simplify right side
    2,190,940.60x = 2,533,774,822,300.86
  5. Step 5: Solve for x
    x = 2,533,774,822,300.86/2,190,940.60
  6. Step 6: Final answer
    x = 1,156,478.10

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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.