Finding the Fourth Proportional to 1,392,153.80, 2,088,230.70 and 683,565.80
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Solution
The fourth proportional to 1,392,153.80, 2,088,230.70 and 683,565.80 is: 1,025,348.70
Step by Step Solution
- Step 1: Write the proportion equation
1,392,153.80 : 2,088,230.70 = 683,565.80 : x - Step 2: Convert to fraction form
1,392,153.80/2,088,230.70 = 683,565.80/x - Step 3: Cross multiply
1,392,153.80x = 2,088,230.70 × 683,565.80 - Step 4: Simplify right side
1,392,153.80x = 1,427,443,089,030.06 - Step 5: Solve for x
x = 1,427,443,089,030.06/1,392,153.80 - Step 6: Final answer
x = 1,025,348.70
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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.