Home / 1,362,011.80-2,039,907.30-802,139.80

Finding the Fourth Proportional to 1,362,011.80, 2,039,907.30 and 802,139.80

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Solution

The fourth proportional to 1,362,011.80, 2,039,907.30 and 802,139.80 is: 1,201,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,011.80 : 2,039,907.30 = 802,139.80 : x
  2. Step 2: Convert to fraction form
    1,362,011.80/2,039,907.30 = 802,139.80/x
  3. Step 3: Cross multiply
    1,362,011.80x = 2,039,907.30 × 802,139.80
  4. Step 4: Simplify right side
    1,362,011.80x = 1,636,290,833,640.54
  5. Step 5: Solve for x
    x = 1,636,290,833,640.54/1,362,011.80
  6. Step 6: Final answer
    x = 1,201,377.87

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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.