Home / 1,366,653.60-2,049,980.40-420,022.80

Finding the Fourth Proportional to 1,366,653.60, 2,049,980.40 and 420,022.80

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Solution

The fourth proportional to 1,366,653.60, 2,049,980.40 and 420,022.80 is: 630,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366,653.60 : 2,049,980.40 = 420,022.80 : x
  2. Step 2: Convert to fraction form
    1,366,653.60/2,049,980.40 = 420,022.80/x
  3. Step 3: Cross multiply
    1,366,653.60x = 2,049,980.40 × 420,022.80
  4. Step 4: Simplify right side
    1,366,653.60x = 861,038,507,553.12
  5. Step 5: Solve for x
    x = 861,038,507,553.12/1,366,653.60
  6. Step 6: Final answer
    x = 630,034.20

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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.