Home / 1,020,121.20-1,530,181.80-908,146.80

Finding the Fourth Proportional to 1,020,121.20, 1,530,181.80 and 908,146.80

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Solution

The fourth proportional to 1,020,121.20, 1,530,181.80 and 908,146.80 is: 1,362,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,121.20 : 1,530,181.80 = 908,146.80 : x
  2. Step 2: Convert to fraction form
    1,020,121.20/1,530,181.80 = 908,146.80/x
  3. Step 3: Cross multiply
    1,020,121.20x = 1,530,181.80 × 908,146.80
  4. Step 4: Simplify right side
    1,020,121.20x = 1,389,629,705,088.24
  5. Step 5: Solve for x
    x = 1,389,629,705,088.24/1,020,121.20
  6. Step 6: Final answer
    x = 1,362,220.20

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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.