Home / 1,821,323.70-2,731,985.55-1,289,445.30

Finding the Fourth Proportional to 1,821,323.70, 2,731,985.55 and 1,289,445.30

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Solution

The fourth proportional to 1,821,323.70, 2,731,985.55 and 1,289,445.30 is: 1,934,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,323.70 : 2,731,985.55 = 1,289,445.30 : x
  2. Step 2: Convert to fraction form
    1,821,323.70/2,731,985.55 = 1,289,445.30/x
  3. Step 3: Cross multiply
    1,821,323.70x = 2,731,985.55 × 1,289,445.30
  4. Step 4: Simplify right side
    1,821,323.70x = 3,522,745,927,115.42
  5. Step 5: Solve for x
    x = 3,522,745,927,115.42/1,821,323.70
  6. Step 6: Final answer
    x = 1,934,167.95

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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.