Finding the Fourth Proportional to 629,655.30, 868,944.60 and 357,718.23
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Solution
The fourth proportional to 629,655.30, 868,944.60 and 357,718.23 is: 493,662.68
Step by Step Solution
- Step 1: Write the proportion equation
629,655.30 : 868,944.60 = 357,718.23 : x - Step 2: Convert to fraction form
629,655.30/868,944.60 = 357,718.23/x - Step 3: Cross multiply
629,655.30x = 868,944.60 × 357,718.23 - Step 4: Simplify right side
629,655.30x = 310,837,324,280.06 - Step 5: Solve for x
x = 310,837,324,280.06/629,655.30 - Step 6: Final answer
x = 493,662.68
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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.