Home / 2,801,905.40-4,202,858.10-1,668,164.60

Finding the Fourth Proportional to 2,801,905.40, 4,202,858.10 and 1,668,164.60

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Solution

The fourth proportional to 2,801,905.40, 4,202,858.10 and 1,668,164.60 is: 2,502,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801,905.40 : 4,202,858.10 = 1,668,164.60 : x
  2. Step 2: Convert to fraction form
    2,801,905.40/4,202,858.10 = 1,668,164.60/x
  3. Step 3: Cross multiply
    2,801,905.40x = 4,202,858.10 × 1,668,164.60
  4. Step 4: Simplify right side
    2,801,905.40x = 7,011,059,101,243.26
  5. Step 5: Solve for x
    x = 7,011,059,101,243.26/2,801,905.40
  6. Step 6: Final answer
    x = 2,502,246.90

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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.