Finding the Fourth Proportional to 657,607.70, 986,411.55 and 303,313.70
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Solution
The fourth proportional to 657,607.70, 986,411.55 and 303,313.70 is: 454,970.55
Step by Step Solution
- Step 1: Write the proportion equation
657,607.70 : 986,411.55 = 303,313.70 : x - Step 2: Convert to fraction form
657,607.70/986,411.55 = 303,313.70/x - Step 3: Cross multiply
657,607.70x = 986,411.55 × 303,313.70 - Step 4: Simplify right side
657,607.70x = 299,192,136,953.24 - Step 5: Solve for x
x = 299,192,136,953.24/657,607.70 - Step 6: Final answer
x = 454,970.55
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Similar ratio
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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.