Home / 1,180,830.40-1,771,245.60-781,921.60

Finding the Fourth Proportional to 1,180,830.40, 1,771,245.60 and 781,921.60

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Solution

The fourth proportional to 1,180,830.40, 1,771,245.60 and 781,921.60 is: 1,172,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,830.40 : 1,771,245.60 = 781,921.60 : x
  2. Step 2: Convert to fraction form
    1,180,830.40/1,771,245.60 = 781,921.60/x
  3. Step 3: Cross multiply
    1,180,830.40x = 1,771,245.60 × 781,921.60
  4. Step 4: Simplify right side
    1,180,830.40x = 1,384,975,193,544.96
  5. Step 5: Solve for x
    x = 1,384,975,193,544.96/1,180,830.40
  6. Step 6: Final answer
    x = 1,172,882.40

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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.