Finding the Fourth Proportional to 485,605.36, 728,617.97 and 260,703.19
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Solution
The fourth proportional to 485,605.36, 728,617.97 and 260,703.19 is: 391,167.49
Step by Step Solution
- Step 1: Write the proportion equation
485,605.36 : 728,617.97 = 260,703.19 : x - Step 2: Convert to fraction form
485,605.36/728,617.97 = 260,703.19/x - Step 3: Cross multiply
485,605.36x = 728,617.97 × 260,703.19 - Step 4: Simplify right side
485,605.36x = 189,953,029,070.32 - Step 5: Solve for x
x = 189,953,029,070.32/485,605.36 - Step 6: Final answer
x = 391,167.49
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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.