Finding the Fourth Proportional to 691,738.16, 1,037,358.14 and 292,409.99
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Solution
The fourth proportional to 691,738.16, 1,037,358.14 and 292,409.99 is: 438,509.68
Step by Step Solution
- Step 1: Write the proportion equation
691,738.16 : 1,037,358.14 = 292,409.99 : x - Step 2: Convert to fraction form
691,738.16/1,037,358.14 = 292,409.99/x - Step 3: Cross multiply
691,738.16x = 1,037,358.14 × 292,409.99 - Step 4: Simplify right side
691,738.16x = 303,333,878,888.05 - Step 5: Solve for x
x = 303,333,878,888.05/691,738.16 - Step 6: Final answer
x = 438,509.68
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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.