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Finding the Fourth Proportional to 605,194.80, 908,051.40 and 309,706.80

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Solution

The fourth proportional to 605,194.80, 908,051.40 and 309,706.80 is: 464,692.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,194.80 : 908,051.40 = 309,706.80 : x
  2. Step 2: Convert to fraction form
    605,194.80/908,051.40 = 309,706.80/x
  3. Step 3: Cross multiply
    605,194.80x = 908,051.40 × 309,706.80
  4. Step 4: Simplify right side
    605,194.80x = 281,229,693,329.52
  5. Step 5: Solve for x
    x = 281,229,693,329.52/605,194.80
  6. Step 6: Final answer
    x = 464,692.84

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1.5x scale

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.