Finding the Fourth Proportional to 1,646,742.77, 2,272,456.10 and 911,729.73
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Solution
The fourth proportional to 1,646,742.77, 2,272,456.10 and 911,729.73 is: 1,258,159.95
Step by Step Solution
- Step 1: Write the proportion equation
1,646,742.77 : 2,272,456.10 = 911,729.73 : x - Step 2: Convert to fraction form
1,646,742.77/2,272,456.10 = 911,729.73/x - Step 3: Cross multiply
1,646,742.77x = 2,272,456.10 × 911,729.73 - Step 4: Simplify right side
1,646,742.77x = 2,071,865,788,769.18 - Step 5: Solve for x
x = 2,071,865,788,769.18/1,646,742.77 - Step 6: Final answer
x = 1,258,159.95
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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.