Finding the Fourth Proportional to 1,574,763.49, 2,173,174.14 and 921,515.10
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Solution
The fourth proportional to 1,574,763.49, 2,173,174.14 and 921,515.10 is: 1,271,691.14
Step by Step Solution
- Step 1: Write the proportion equation
1,574,763.49 : 2,173,174.14 = 921,515.10 : x - Step 2: Convert to fraction form
1,574,763.49/2,173,174.14 = 921,515.10/x - Step 3: Cross multiply
1,574,763.49x = 2,173,174.14 × 921,515.10 - Step 4: Simplify right side
1,574,763.49x = 2,002,612,775,062.27 - Step 5: Solve for x
x = 2,002,612,775,062.27/1,574,763.49 - Step 6: Final answer
x = 1,271,691.14
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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.