Finding the Fourth Proportional to 1,292,125.40, 1,940,261.70 and 976,938.20
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Solution
The fourth proportional to 1,292,125.40, 1,940,261.70 and 976,938.20 is: 1,466,975.09
Step by Step Solution
- Step 1: Write the proportion equation
1,292,125.40 : 1,940,261.70 = 976,938.20 : x - Step 2: Convert to fraction form
1,292,125.40/1,940,261.70 = 976,938.20/x - Step 3: Cross multiply
1,292,125.40x = 1,940,261.70 × 976,938.20 - Step 4: Simplify right side
1,292,125.40x = 1,895,515,772,726.94 - Step 5: Solve for x
x = 1,895,515,772,726.94/1,292,125.40 - Step 6: Final answer
x = 1,466,975.09
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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.