Finding the Fourth Proportional to 857,537.62, 1,183,403.63 and 470,356.20
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Solution
The fourth proportional to 857,537.62, 1,183,403.63 and 470,356.20 is: 649,092.50
Step by Step Solution
- Step 1: Write the proportion equation
857,537.62 : 1,183,403.63 = 470,356.20 : x - Step 2: Convert to fraction form
857,537.62/1,183,403.63 = 470,356.20/x - Step 3: Cross multiply
857,537.62x = 1,183,403.63 × 470,356.20 - Step 4: Simplify right side
857,537.62x = 556,621,235,648.90 - Step 5: Solve for x
x = 556,621,235,648.90/857,537.62 - Step 6: Final answer
x = 649,092.50
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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.