Finding the Fourth Proportional to 2,154,232.08, 2,972,823.84 and 1,187,364.24
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Solution
The fourth proportional to 2,154,232.08, 2,972,823.84 and 1,187,364.24 is: 1,638,553.60
Step by Step Solution
- Step 1: Write the proportion equation
2,154,232.08 : 2,972,823.84 = 1,187,364.24 : x - Step 2: Convert to fraction form
2,154,232.08/2,972,823.84 = 1,187,364.24/x - Step 3: Cross multiply
2,154,232.08x = 2,972,823.84 × 1,187,364.24 - Step 4: Simplify right side
2,154,232.08x = 3,529,824,719,435.48 - Step 5: Solve for x
x = 3,529,824,719,435.48/2,154,232.08 - Step 6: Final answer
x = 1,638,553.60
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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.