Finding the Fourth Proportional to 1,917,079.11, 2,645,476.85 and 1,045,861.95
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Solution
The fourth proportional to 1,917,079.11, 2,645,476.85 and 1,045,861.95 is: 1,443,239.12
Step by Step Solution
- Step 1: Write the proportion equation
1,917,079.11 : 2,645,476.85 = 1,045,861.95 : x - Step 2: Convert to fraction form
1,917,079.11/2,645,476.85 = 1,045,861.95/x - Step 3: Cross multiply
1,917,079.11x = 2,645,476.85 × 1,045,861.95 - Step 4: Simplify right side
1,917,079.11x = 2,766,803,577,020.86 - Step 5: Solve for x
x = 2,766,803,577,020.86/1,917,079.11 - Step 6: Final answer
x = 1,443,239.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.