Finding the Fourth Proportional to 752,678.05, 1,038,696.69 and 408,513.96
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Solution
The fourth proportional to 752,678.05, 1,038,696.69 and 408,513.96 is: 563,749.80
Step by Step Solution
- Step 1: Write the proportion equation
752,678.05 : 1,038,696.69 = 408,513.96 : x - Step 2: Convert to fraction form
752,678.05/1,038,696.69 = 408,513.96/x - Step 3: Cross multiply
752,678.05x = 1,038,696.69 × 408,513.96 - Step 4: Simplify right side
752,678.05x = 424,322,098,070.79 - Step 5: Solve for x
x = 424,322,098,070.79/752,678.05 - Step 6: Final answer
x = 563,749.80
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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.