Finding the Fourth Proportional to 1,125,921.39, 1,689,167.24 and 327,185.79
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Solution
The fourth proportional to 1,125,921.39, 1,689,167.24 and 327,185.79 is: 490,861.55
Step by Step Solution
- Step 1: Write the proportion equation
1,125,921.39 : 1,689,167.24 = 327,185.79 : x - Step 2: Convert to fraction form
1,125,921.39/1,689,167.24 = 327,185.79/x - Step 3: Cross multiply
1,125,921.39x = 1,689,167.24 × 327,185.79 - Step 4: Simplify right side
1,125,921.39x = 552,671,516,225.59 - Step 5: Solve for x
x = 552,671,516,225.59/1,125,921.39 - Step 6: Final answer
x = 490,861.55
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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.