Finding the Fourth Proportional to 665,179.11, 917,948.03 and 378,699.19
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Solution
The fourth proportional to 665,179.11, 917,948.03 and 378,699.19 is: 522,605.37
Step by Step Solution
- Step 1: Write the proportion equation
665,179.11 : 917,948.03 = 378,699.19 : x - Step 2: Convert to fraction form
665,179.11/917,948.03 = 378,699.19/x - Step 3: Cross multiply
665,179.11x = 917,948.03 × 378,699.19 - Step 4: Simplify right side
665,179.11x = 347,626,175,423.10 - Step 5: Solve for x
x = 347,626,175,423.10/665,179.11 - Step 6: Final answer
x = 522,605.37
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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.