Finding the Fourth Proportional to 755,745.12, 1,133,590.68 and 329,280.12
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Solution
The fourth proportional to 755,745.12, 1,133,590.68 and 329,280.12 is: 493,908.42
Step by Step Solution
- Step 1: Write the proportion equation
755,745.12 : 1,133,590.68 = 329,280.12 : x - Step 2: Convert to fraction form
755,745.12/1,133,590.68 = 329,280.12/x - Step 3: Cross multiply
755,745.12x = 1,133,590.68 × 329,280.12 - Step 4: Simplify right side
755,745.12x = 373,268,875,141.28 - Step 5: Solve for x
x = 373,268,875,141.28/755,745.12 - Step 6: Final answer
x = 493,908.42
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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.