Finding the Fourth Proportional to 752,177.16, 1,128,431.82 and 278,862.54
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Solution
The fourth proportional to 752,177.16, 1,128,431.82 and 278,862.54 is: 418,355.38
Step by Step Solution
- Step 1: Write the proportion equation
752,177.16 : 1,128,431.82 = 278,862.54 : x - Step 2: Convert to fraction form
752,177.16/1,128,431.82 = 278,862.54/x - Step 3: Cross multiply
752,177.16x = 1,128,431.82 × 278,862.54 - Step 4: Simplify right side
752,177.16x = 314,677,363,542.02 - Step 5: Solve for x
x = 314,677,363,542.02/752,177.16 - Step 6: Final answer
x = 418,355.38
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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.