Finding the Fourth Proportional to 1,681,851.61, 2,320,920.70 and 917,904.97
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Solution
The fourth proportional to 1,681,851.61, 2,320,920.70 and 917,904.97 is: 1,266,690.02
Step by Step Solution
- Step 1: Write the proportion equation
1,681,851.61 : 2,320,920.70 = 917,904.97 : x - Step 2: Convert to fraction form
1,681,851.61/2,320,920.70 = 917,904.97/x - Step 3: Cross multiply
1,681,851.61x = 2,320,920.70 × 917,904.97 - Step 4: Simplify right side
1,681,851.61x = 2,130,384,645,505.88 - Step 5: Solve for x
x = 2,130,384,645,505.88/1,681,851.61 - Step 6: Final answer
x = 1,266,690.02
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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.