Home / 1,109,907.60-1,664,861.40-684,754.80

Finding the Fourth Proportional to 1,109,907.60, 1,664,861.40 and 684,754.80

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Solution

The fourth proportional to 1,109,907.60, 1,664,861.40 and 684,754.80 is: 1,027,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,907.60 : 1,664,861.40 = 684,754.80 : x
  2. Step 2: Convert to fraction form
    1,109,907.60/1,664,861.40 = 684,754.80/x
  3. Step 3: Cross multiply
    1,109,907.60x = 1,664,861.40 × 684,754.80
  4. Step 4: Simplify right side
    1,109,907.60x = 1,140,021,834,984.72
  5. Step 5: Solve for x
    x = 1,140,021,834,984.72/1,109,907.60
  6. Step 6: Final answer
    x = 1,027,132.20

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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.