Finding the Fourth Proportional to 615,122.40, 922,683.60 and 457,658.40
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Solution
The fourth proportional to 615,122.40, 922,683.60 and 457,658.40 is: 686,487.60
Step by Step Solution
- Step 1: Write the proportion equation
615,122.40 : 922,683.60 = 457,658.40 : x - Step 2: Convert to fraction form
615,122.40/922,683.60 = 457,658.40/x - Step 3: Cross multiply
615,122.40x = 922,683.60 × 457,658.40 - Step 4: Simplify right side
615,122.40x = 422,273,900,082.24 - Step 5: Solve for x
x = 422,273,900,082.24/615,122.40 - Step 6: Final answer
x = 686,487.60
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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.