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Finding the Fourth Proportional to 606,442.80, 908,570.70 and 290,202.60

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Solution

The fourth proportional to 606,442.80, 908,570.70 and 290,202.60 is: 434,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,442.80 : 908,570.70 = 290,202.60 : x
  2. Step 2: Convert to fraction form
    606,442.80/908,570.70 = 290,202.60/x
  3. Step 3: Cross multiply
    606,442.80x = 908,570.70 × 290,202.60
  4. Step 4: Simplify right side
    606,442.80x = 263,669,579,423.82
  5. Step 5: Solve for x
    x = 263,669,579,423.82/606,442.80
  6. Step 6: Final answer
    x = 434,780.62

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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.