Home / 908,393.21-1,362,800.90-309,359.57

Finding the Fourth Proportional to 908,393.21, 1,362,800.90 and 309,359.57

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Solution

The fourth proportional to 908,393.21, 1,362,800.90 and 309,359.57 is: 464,111.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,393.21 : 1,362,800.90 = 309,359.57 : x
  2. Step 2: Convert to fraction form
    908,393.21/1,362,800.90 = 309,359.57/x
  3. Step 3: Cross multiply
    908,393.21x = 1,362,800.90 × 309,359.57
  4. Step 4: Simplify right side
    908,393.21x = 421,595,492,058.81
  5. Step 5: Solve for x
    x = 421,595,492,058.81/908,393.21
  6. Step 6: Final answer
    x = 464,111.23

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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.