Finding the Fourth Proportional to 752,419.94, 1,038,696.74 and 476,915.45
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Solution
The fourth proportional to 752,419.94, 1,038,696.74 and 476,915.45 is: 658,369.75
Step by Step Solution
- Step 1: Write the proportion equation
752,419.94 : 1,038,696.74 = 476,915.45 : x - Step 2: Convert to fraction form
752,419.94/1,038,696.74 = 476,915.45/x - Step 3: Cross multiply
752,419.94x = 1,038,696.74 × 476,915.45 - Step 4: Simplify right side
752,419.94x = 495,370,526,959.66 - Step 5: Solve for x
x = 495,370,526,959.66/752,419.94 - Step 6: Final answer
x = 658,369.75
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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.