Finding the Fourth Proportional to 553,727.53, 764,144.65 and 299,078.72
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Solution
The fourth proportional to 553,727.53, 764,144.65 and 299,078.72 is: 412,728.99
Step by Step Solution
- Step 1: Write the proportion equation
553,727.53 : 764,144.65 = 299,078.72 : x - Step 2: Convert to fraction form
553,727.53/764,144.65 = 299,078.72/x - Step 3: Cross multiply
553,727.53x = 764,144.65 × 299,078.72 - Step 4: Simplify right side
553,727.53x = 228,539,403,816.85 - Step 5: Solve for x
x = 228,539,403,816.85/553,727.53 - Step 6: Final answer
x = 412,728.99
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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.