Finding the Fourth Proportional to 1,917,376.61, 2,646,035.08 and 1,057,992.21
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Solution
The fourth proportional to 1,917,376.61, 2,646,035.08 and 1,057,992.21 is: 1,460,059.80
Step by Step Solution
- Step 1: Write the proportion equation
1,917,376.61 : 2,646,035.08 = 1,057,992.21 : x - Step 2: Convert to fraction form
1,917,376.61/2,646,035.08 = 1,057,992.21/x - Step 3: Cross multiply
1,917,376.61x = 2,646,035.08 × 1,057,992.21 - Step 4: Simplify right side
1,917,376.61x = 2,799,484,499,381.75 - Step 5: Solve for x
x = 2,799,484,499,381.75/1,917,376.61 - Step 6: Final answer
x = 1,460,059.80
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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.