Finding the Fourth Proportional to 921,579.18, 1,382,161.41 and 330,603.18
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Solution
The fourth proportional to 921,579.18, 1,382,161.41 and 330,603.18 is: 495,830.38
Step by Step Solution
- Step 1: Write the proportion equation
921,579.18 : 1,382,161.41 = 330,603.18 : x - Step 2: Convert to fraction form
921,579.18/1,382,161.41 = 330,603.18/x - Step 3: Cross multiply
921,579.18x = 1,382,161.41 × 330,603.18 - Step 4: Simplify right side
921,579.18x = 456,946,957,419.28 - Step 5: Solve for x
x = 456,946,957,419.28/921,579.18 - Step 6: Final answer
x = 495,830.38
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.