Finding the Fourth Proportional to 531,126.97, 732,945.74 and 289,411.63
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Solution
The fourth proportional to 531,126.97, 732,945.74 and 289,411.63 is: 399,382.88
Step by Step Solution
- Step 1: Write the proportion equation
531,126.97 : 732,945.74 = 289,411.63 : x - Step 2: Convert to fraction form
531,126.97/732,945.74 = 289,411.63/x - Step 3: Cross multiply
531,126.97x = 732,945.74 × 289,411.63 - Step 4: Simplify right side
531,126.97x = 212,123,021,314.96 - Step 5: Solve for x
x = 212,123,021,314.96/531,126.97 - Step 6: Final answer
x = 399,382.88
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1.5x scale
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.