Home / 990,990.54-1,486,485.27-281,024.46

Finding the Fourth Proportional to 990,990.54, 1,486,485.27 and 281,024.46

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Solution

The fourth proportional to 990,990.54, 1,486,485.27 and 281,024.46 is: 421,536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,990.54 : 1,486,485.27 = 281,024.46 : x
  2. Step 2: Convert to fraction form
    990,990.54/1,486,485.27 = 281,024.46/x
  3. Step 3: Cross multiply
    990,990.54x = 1,486,485.27 × 281,024.46
  4. Step 4: Simplify right side
    990,990.54x = 417,738,720,299.70
  5. Step 5: Solve for x
    x = 417,738,720,299.70/990,990.54
  6. Step 6: Final answer
    x = 421,536.54

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1.5x scale

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.