Home / 3,484,869.40-5,220,305.70-1,987,211.80

Finding the Fourth Proportional to 3,484,869.40, 5,220,305.70 and 1,987,211.80

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Solution

The fourth proportional to 3,484,869.40, 5,220,305.70 and 1,987,211.80 is: 2,976,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484,869.40 : 5,220,305.70 = 1,987,211.80 : x
  2. Step 2: Convert to fraction form
    3,484,869.40/5,220,305.70 = 1,987,211.80/x
  3. Step 3: Cross multiply
    3,484,869.40x = 5,220,305.70 × 1,987,211.80
  4. Step 4: Simplify right side
    3,484,869.40x = 10,373,853,086,647.26
  5. Step 5: Solve for x
    x = 10,373,853,086,647.26/3,484,869.40
  6. Step 6: Final answer
    x = 2,976,826.93

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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.