Home / 908,394.21-1,362,802.40-309,360.57

Finding the Fourth Proportional to 908,394.21, 1,362,802.40 and 309,360.57

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Solution

The fourth proportional to 908,394.21, 1,362,802.40 and 309,360.57 is: 464,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,394.21 : 1,362,802.40 = 309,360.57 : x
  2. Step 2: Convert to fraction form
    908,394.21/1,362,802.40 = 309,360.57/x
  3. Step 3: Cross multiply
    908,394.21x = 1,362,802.40 × 309,360.57
  4. Step 4: Simplify right side
    908,394.21x = 421,597,327,261.37
  5. Step 5: Solve for x
    x = 421,597,327,261.37/908,394.21
  6. Step 6: Final answer
    x = 464,112.74

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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.