Finding the Fourth Proportional to 664,913.08, 916,957.20 and 529,394.38
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Solution
The fourth proportional to 664,913.08, 916,957.20 and 529,394.38 is: 730,068.34
Step by Step Solution
- Step 1: Write the proportion equation
664,913.08 : 916,957.20 = 529,394.38 : x - Step 2: Convert to fraction form
664,913.08/916,957.20 = 529,394.38/x - Step 3: Cross multiply
664,913.08x = 916,957.20 × 529,394.38 - Step 4: Simplify right side
664,913.08x = 485,431,988,380.54 - Step 5: Solve for x
x = 485,431,988,380.54/664,913.08 - Step 6: Final answer
x = 730,068.34
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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.