Finding the Fourth Proportional to 917,558.69, 1,266,214.07 and 509,644.31
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Solution
The fourth proportional to 917,558.69, 1,266,214.07 and 509,644.31 is: 703,299.75
Step by Step Solution
- Step 1: Write the proportion equation
917,558.69 : 1,266,214.07 = 509,644.31 : x - Step 2: Convert to fraction form
917,558.69/1,266,214.07 = 509,644.31/x - Step 3: Cross multiply
917,558.69x = 1,266,214.07 × 509,644.31 - Step 4: Simplify right side
917,558.69x = 645,318,790,960.48 - Step 5: Solve for x
x = 645,318,790,960.48/917,558.69 - Step 6: Final answer
x = 703,299.75
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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.