Home / 1,621,703.40-2,431,739.10-499,626.60

Finding the Fourth Proportional to 1,621,703.40, 2,431,739.10 and 499,626.60

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Solution

The fourth proportional to 1,621,703.40, 2,431,739.10 and 499,626.60 is: 749,188.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,703.40 : 2,431,739.10 = 499,626.60 : x
  2. Step 2: Convert to fraction form
    1,621,703.40/2,431,739.10 = 499,626.60/x
  3. Step 3: Cross multiply
    1,621,703.40x = 2,431,739.10 × 499,626.60
  4. Step 4: Simplify right side
    1,621,703.40x = 1,214,961,538,620.06
  5. Step 5: Solve for x
    x = 1,214,961,538,620.06/1,621,703.40
  6. Step 6: Final answer
    x = 749,188.50

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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.