Finding the Fourth Proportional to 910,319.63, 1,252,870.49 and 668,218.73
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Solution
The fourth proportional to 910,319.63, 1,252,870.49 and 668,218.73 is: 919,667.66
Step by Step Solution
- Step 1: Write the proportion equation
910,319.63 : 1,252,870.49 = 668,218.73 : x - Step 2: Convert to fraction form
910,319.63/1,252,870.49 = 668,218.73/x - Step 3: Cross multiply
910,319.63x = 1,252,870.49 × 668,218.73 - Step 4: Simplify right side
910,319.63x = 837,191,524,341.18 - Step 5: Solve for x
x = 837,191,524,341.18/910,319.63 - Step 6: Final answer
x = 919,667.66
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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.