Home / 1,213,414.40-1,820,121.60-977,218.40

Finding the Fourth Proportional to 1,213,414.40, 1,820,121.60 and 977,218.40

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Solution

The fourth proportional to 1,213,414.40, 1,820,121.60 and 977,218.40 is: 1,465,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,414.40 : 1,820,121.60 = 977,218.40 : x
  2. Step 2: Convert to fraction form
    1,213,414.40/1,820,121.60 = 977,218.40/x
  3. Step 3: Cross multiply
    1,213,414.40x = 1,820,121.60 × 977,218.40
  4. Step 4: Simplify right side
    1,213,414.40x = 1,778,656,317,757.44
  5. Step 5: Solve for x
    x = 1,778,656,317,757.44/1,213,414.40
  6. Step 6: Final answer
    x = 1,465,827.60

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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.