Finding the Fourth Proportional to 749,133.14, 1,123,710.07 and 243,696.75
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Solution
The fourth proportional to 749,133.14, 1,123,710.07 and 243,696.75 is: 365,548.50
Step by Step Solution
- Step 1: Write the proportion equation
749,133.14 : 1,123,710.07 = 243,696.75 : x - Step 2: Convert to fraction form
749,133.14/1,123,710.07 = 243,696.75/x - Step 3: Cross multiply
749,133.14x = 1,123,710.07 × 243,696.75 - Step 4: Simplify right side
749,133.14x = 273,844,490,782.79 - Step 5: Solve for x
x = 273,844,490,782.79/749,133.14 - Step 6: Final answer
x = 365,548.50
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1.5x scale
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.