Home / 1,984,015.20-2,977,189.20-721,970.40

Finding the Fourth Proportional to 1,984,015.20, 2,977,189.20 and 721,970.40

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Solution

The fourth proportional to 1,984,015.20, 2,977,189.20 and 721,970.40 is: 1,083,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,015.20 : 2,977,189.20 = 721,970.40 : x
  2. Step 2: Convert to fraction form
    1,984,015.20/2,977,189.20 = 721,970.40/x
  3. Step 3: Cross multiply
    1,984,015.20x = 2,977,189.20 × 721,970.40
  4. Step 4: Simplify right side
    1,984,015.20x = 2,149,442,477,599.68
  5. Step 5: Solve for x
    x = 2,149,442,477,599.68/1,984,015.20
  6. Step 6: Final answer
    x = 1,083,380.05

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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.