Home / 1,422,140.80-2,130,100.80-1,104,102.40

Finding the Fourth Proportional to 1,422,140.80, 2,130,100.80 and 1,104,102.40

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Solution

The fourth proportional to 1,422,140.80, 2,130,100.80 and 1,104,102.40 is: 1,653,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,140.80 : 2,130,100.80 = 1,104,102.40 : x
  2. Step 2: Convert to fraction form
    1,422,140.80/2,130,100.80 = 1,104,102.40/x
  3. Step 3: Cross multiply
    1,422,140.80x = 2,130,100.80 × 1,104,102.40
  4. Step 4: Simplify right side
    1,422,140.80x = 2,351,849,405,521.92
  5. Step 5: Solve for x
    x = 2,351,849,405,521.92/1,422,140.80
  6. Step 6: Final answer
    x = 1,653,738.79

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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.