Finding the Fourth Proportional to 781,538.11, 1,172,285.29 and 249,091.09
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Solution
The fourth proportional to 781,538.11, 1,172,285.29 and 249,091.09 is: 373,629.66
Step by Step Solution
- Step 1: Write the proportion equation
781,538.11 : 1,172,285.29 = 249,091.09 : x - Step 2: Convert to fraction form
781,538.11/1,172,285.29 = 249,091.09/x - Step 3: Cross multiply
781,538.11x = 1,172,285.29 × 249,091.09 - Step 4: Simplify right side
781,538.11x = 292,005,817,123.63 - Step 5: Solve for x
x = 292,005,817,123.63/781,538.11 - Step 6: Final answer
x = 373,629.66
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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.