Finding the Fourth Proportional to 651,567.31, 978,425.84 and 439,696.42
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Solution
The fourth proportional to 651,567.31, 978,425.84 and 439,696.42 is: 660,269.99
Step by Step Solution
- Step 1: Write the proportion equation
651,567.31 : 978,425.84 = 439,696.42 : x - Step 2: Convert to fraction form
651,567.31/978,425.84 = 439,696.42/x - Step 3: Cross multiply
651,567.31x = 978,425.84 × 439,696.42 - Step 4: Simplify right side
651,567.31x = 430,210,339,083.49 - Step 5: Solve for x
x = 430,210,339,083.49/651,567.31 - Step 6: Final answer
x = 660,269.99
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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.