Home / 908,739.09-1,363,226.49-309,539.97

Finding the Fourth Proportional to 908,739.09, 1,363,226.49 and 309,539.97

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Solution

The fourth proportional to 908,739.09, 1,363,226.49 and 309,539.97 is: 464,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,739.09 : 1,363,226.49 = 309,539.97 : x
  2. Step 2: Convert to fraction form
    908,739.09/1,363,226.49 = 309,539.97/x
  3. Step 3: Cross multiply
    908,739.09x = 1,363,226.49 × 309,539.97
  4. Step 4: Simplify right side
    908,739.09x = 421,973,086,817.81
  5. Step 5: Solve for x
    x = 421,973,086,817.81/908,739.09
  6. Step 6: Final answer
    x = 464,350.10

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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.