Finding the Fourth Proportional to 1,971,811.23, 2,721,125.96 and 1,112,368.83
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Solution
The fourth proportional to 1,971,811.23, 2,721,125.96 and 1,112,368.83 is: 1,535,083.91
Step by Step Solution
- Step 1: Write the proportion equation
1,971,811.23 : 2,721,125.96 = 1,112,368.83 : x - Step 2: Convert to fraction form
1,971,811.23/2,721,125.96 = 1,112,368.83/x - Step 3: Cross multiply
1,971,811.23x = 2,721,125.96 × 1,112,368.83 - Step 4: Simplify right side
1,971,811.23x = 3,026,895,694,845.98 - Step 5: Solve for x
x = 3,026,895,694,845.98/1,971,811.23 - Step 6: Final answer
x = 1,535,083.91
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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.