Finding the Fourth Proportional to 485,604.36, 728,616.47 and 260,702.19
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Solution
The fourth proportional to 485,604.36, 728,616.47 and 260,702.19 is: 391,165.99
Step by Step Solution
- Step 1: Write the proportion equation
485,604.36 : 728,616.47 = 260,702.19 : x - Step 2: Convert to fraction form
485,604.36/728,616.47 = 260,702.19/x - Step 3: Cross multiply
485,604.36x = 728,616.47 × 260,702.19 - Step 4: Simplify right side
485,604.36x = 189,951,908,095.56 - Step 5: Solve for x
x = 189,951,908,095.56/485,604.36 - Step 6: Final answer
x = 391,165.99
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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.