Finding the Fourth Proportional to 974,400.48, 1,344,916.44 and 780,049.08
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Solution
The fourth proportional to 974,400.48, 1,344,916.44 and 780,049.08 is: 1,076,662.88
Step by Step Solution
- Step 1: Write the proportion equation
974,400.48 : 1,344,916.44 = 780,049.08 : x - Step 2: Convert to fraction form
974,400.48/1,344,916.44 = 780,049.08/x - Step 3: Cross multiply
974,400.48x = 1,344,916.44 × 780,049.08 - Step 4: Simplify right side
974,400.48x = 1,049,100,831,698.88 - Step 5: Solve for x
x = 1,049,100,831,698.88/974,400.48 - Step 6: Final answer
x = 1,076,662.88
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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.