Home / 1,999,409.40-2,996,489.70-800,350.20

Finding the Fourth Proportional to 1,999,409.40, 2,996,489.70 and 800,350.20

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Solution

The fourth proportional to 1,999,409.40, 2,996,489.70 and 800,350.20 is: 1,199,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,409.40 : 2,996,489.70 = 800,350.20 : x
  2. Step 2: Convert to fraction form
    1,999,409.40/2,996,489.70 = 800,350.20/x
  3. Step 3: Cross multiply
    1,999,409.40x = 2,996,489.70 × 800,350.20
  4. Step 4: Simplify right side
    1,999,409.40x = 2,398,241,130,692.94
  5. Step 5: Solve for x
    x = 2,398,241,130,692.94/1,999,409.40
  6. Step 6: Final answer
    x = 1,199,474.77

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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.