Home / 990,976.64-1,486,464.48-281,010.80

Finding the Fourth Proportional to 990,976.64, 1,486,464.48 and 281,010.80

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Solution

The fourth proportional to 990,976.64, 1,486,464.48 and 281,010.80 is: 421,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,976.64 : 1,486,464.48 = 281,010.80 : x
  2. Step 2: Convert to fraction form
    990,976.64/1,486,464.48 = 281,010.80/x
  3. Step 3: Cross multiply
    990,976.64x = 1,486,464.48 × 281,010.80
  4. Step 4: Simplify right side
    990,976.64x = 417,712,572,696.38
  5. Step 5: Solve for x
    x = 417,712,572,696.38/990,976.64
  6. Step 6: Final answer
    x = 421,516.06

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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.