Home / 908,438.83-1,362,869.07-309,405.18

Finding the Fourth Proportional to 908,438.83, 1,362,869.07 and 309,405.18

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Solution

The fourth proportional to 908,438.83, 1,362,869.07 and 309,405.18 is: 464,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,438.83 : 1,362,869.07 = 309,405.18 : x
  2. Step 2: Convert to fraction form
    908,438.83/1,362,869.07 = 309,405.18/x
  3. Step 3: Cross multiply
    908,438.83x = 1,362,869.07 × 309,405.18
  4. Step 4: Simplify right side
    908,438.83x = 421,678,749,919.78
  5. Step 5: Solve for x
    x = 421,678,749,919.78/908,438.83
  6. Step 6: Final answer
    x = 464,179.57

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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.