Finding the Fourth Proportional to 1,243,948.68, 1,717,178.85 and 836,286.96
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Solution
The fourth proportional to 1,243,948.68, 1,717,178.85 and 836,286.96 is: 1,154,432.09
Step by Step Solution
- Step 1: Write the proportion equation
1,243,948.68 : 1,717,178.85 = 836,286.96 : x - Step 2: Convert to fraction form
1,243,948.68/1,717,178.85 = 836,286.96/x - Step 3: Cross multiply
1,243,948.68x = 1,717,178.85 × 836,286.96 - Step 4: Simplify right side
1,243,948.68x = 1,436,054,280,242.80 - Step 5: Solve for x
x = 1,436,054,280,242.80/1,243,948.68 - Step 6: Final answer
x = 1,154,432.09
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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.