Home / 1,684,987.80-2,527,481.70-1,385,806.20

Finding the Fourth Proportional to 1,684,987.80, 2,527,481.70 and 1,385,806.20

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Solution

The fourth proportional to 1,684,987.80, 2,527,481.70 and 1,385,806.20 is: 2,078,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684,987.80 : 2,527,481.70 = 1,385,806.20 : x
  2. Step 2: Convert to fraction form
    1,684,987.80/2,527,481.70 = 1,385,806.20/x
  3. Step 3: Cross multiply
    1,684,987.80x = 2,527,481.70 × 1,385,806.20
  4. Step 4: Simplify right side
    1,684,987.80x = 3,502,599,810,246.54
  5. Step 5: Solve for x
    x = 3,502,599,810,246.54/1,684,987.80
  6. Step 6: Final answer
    x = 2,078,709.30

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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.