Finding the Fourth Proportional to 518,703.62, 715,816.59 and 292,349.12
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Solution
The fourth proportional to 518,703.62, 715,816.59 and 292,349.12 is: 403,444.94
Step by Step Solution
- Step 1: Write the proportion equation
518,703.62 : 715,816.59 = 292,349.12 : x - Step 2: Convert to fraction form
518,703.62/715,816.59 = 292,349.12/x - Step 3: Cross multiply
518,703.62x = 715,816.59 × 292,349.12 - Step 4: Simplify right side
518,703.62x = 209,268,350,167.90 - Step 5: Solve for x
x = 209,268,350,167.90/518,703.62 - Step 6: Final answer
x = 403,444.94
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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.