Finding the Fourth Proportional to 828,821.70, 1,243,232.55 and 618,869.70
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Solution
The fourth proportional to 828,821.70, 1,243,232.55 and 618,869.70 is: 928,304.55
Step by Step Solution
- Step 1: Write the proportion equation
828,821.70 : 1,243,232.55 = 618,869.70 : x - Step 2: Convert to fraction form
828,821.70/1,243,232.55 = 618,869.70/x - Step 3: Cross multiply
828,821.70x = 1,243,232.55 × 618,869.70 - Step 4: Simplify right side
828,821.70x = 769,398,955,248.74 - Step 5: Solve for x
x = 769,398,955,248.74/828,821.70 - Step 6: Final answer
x = 928,304.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.