Home / 1,984,911.60-2,977,367.40-1,811,701.20

Finding the Fourth Proportional to 1,984,911.60, 2,977,367.40 and 1,811,701.20

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Solution

The fourth proportional to 1,984,911.60, 2,977,367.40 and 1,811,701.20 is: 2,717,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,911.60 : 2,977,367.40 = 1,811,701.20 : x
  2. Step 2: Convert to fraction form
    1,984,911.60/2,977,367.40 = 1,811,701.20/x
  3. Step 3: Cross multiply
    1,984,911.60x = 2,977,367.40 × 1,811,701.20
  4. Step 4: Simplify right side
    1,984,911.60x = 5,394,100,091,420.88
  5. Step 5: Solve for x
    x = 5,394,100,091,420.88/1,984,911.60
  6. Step 6: Final answer
    x = 2,717,551.80

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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.