Finding the Fourth Proportional to 1,427,581.80, 1,970,135.06 and 783,061.97
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Solution
The fourth proportional to 1,427,581.80, 1,970,135.06 and 783,061.97 is: 1,080,665.10
Step by Step Solution
- Step 1: Write the proportion equation
1,427,581.80 : 1,970,135.06 = 783,061.97 : x - Step 2: Convert to fraction form
1,427,581.80/1,970,135.06 = 783,061.97/x - Step 3: Cross multiply
1,427,581.80x = 1,970,135.06 × 783,061.97 - Step 4: Simplify right side
1,427,581.80x = 1,542,737,827,483.68 - Step 5: Solve for x
x = 1,542,737,827,483.68/1,427,581.80 - Step 6: Final answer
x = 1,080,665.10
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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.