Home / 1,860,147.28-2,789,134.93-721,579.06

Finding the Fourth Proportional to 1,860,147.28, 2,789,134.93 and 721,579.06

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Solution

The fourth proportional to 1,860,147.28, 2,789,134.93 and 721,579.06 is: 1,081,947.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860,147.28 : 2,789,134.93 = 721,579.06 : x
  2. Step 2: Convert to fraction form
    1,860,147.28/2,789,134.93 = 721,579.06/x
  3. Step 3: Cross multiply
    1,860,147.28x = 2,789,134.93 × 721,579.06
  4. Step 4: Simplify right side
    1,860,147.28x = 2,012,581,361,002.57
  5. Step 5: Solve for x
    x = 2,012,581,361,002.57/1,860,147.28
  6. Step 6: Final answer
    x = 1,081,947.32

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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.