Home / 2,118,743.60-3,178,115.40-1,205,452.40

Finding the Fourth Proportional to 2,118,743.60, 3,178,115.40 and 1,205,452.40

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Solution

The fourth proportional to 2,118,743.60, 3,178,115.40 and 1,205,452.40 is: 1,808,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,743.60 : 3,178,115.40 = 1,205,452.40 : x
  2. Step 2: Convert to fraction form
    2,118,743.60/3,178,115.40 = 1,205,452.40/x
  3. Step 3: Cross multiply
    2,118,743.60x = 3,178,115.40 × 1,205,452.40
  4. Step 4: Simplify right side
    2,118,743.60x = 3,831,066,836,406.96
  5. Step 5: Solve for x
    x = 3,831,066,836,406.96/2,118,743.60
  6. Step 6: Final answer
    x = 1,808,178.60

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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.