Finding the Fourth Proportional to 738,138.60, 1,106,516.70 and 578,125.80
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Solution
The fourth proportional to 738,138.60, 1,106,516.70 and 578,125.80 is: 866,647.34
Step by Step Solution
- Step 1: Write the proportion equation
738,138.60 : 1,106,516.70 = 578,125.80 : x - Step 2: Convert to fraction form
738,138.60/1,106,516.70 = 578,125.80/x - Step 3: Cross multiply
738,138.60x = 1,106,516.70 × 578,125.80 - Step 4: Simplify right side
738,138.60x = 639,705,852,400.86 - Step 5: Solve for x
x = 639,705,852,400.86/738,138.60 - Step 6: Final answer
x = 866,647.34
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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.