Finding the Fourth Proportional to 912,516.02, 1,368,657.36 and 379,937.78
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Solution
The fourth proportional to 912,516.02, 1,368,657.36 and 379,937.78 is: 569,858.09
Step by Step Solution
- Step 1: Write the proportion equation
912,516.02 : 1,368,657.36 = 379,937.78 : x - Step 2: Convert to fraction form
912,516.02/1,368,657.36 = 379,937.78/x - Step 3: Cross multiply
912,516.02x = 1,368,657.36 × 379,937.78 - Step 4: Simplify right side
912,516.02x = 520,004,638,939.06 - Step 5: Solve for x
x = 520,004,638,939.06/912,516.02 - Step 6: Final answer
x = 569,858.09
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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.