Finding the Fourth Proportional to 557,984.36, 769,295.67 and 361,401.08
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Solution
The fourth proportional to 557,984.36, 769,295.67 and 361,401.08 is: 498,265.37
Step by Step Solution
- Step 1: Write the proportion equation
557,984.36 : 769,295.67 = 361,401.08 : x - Step 2: Convert to fraction form
557,984.36/769,295.67 = 361,401.08/x - Step 3: Cross multiply
557,984.36x = 769,295.67 × 361,401.08 - Step 4: Simplify right side
557,984.36x = 278,024,285,977.32 - Step 5: Solve for x
x = 278,024,285,977.32/557,984.36 - Step 6: Final answer
x = 498,265.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.