Finding the Fourth Proportional to 492,332.64, 679,158.63 and 339,107.31
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Solution
The fourth proportional to 492,332.64, 679,158.63 and 339,107.31 is: 467,788.72
Step by Step Solution
- Step 1: Write the proportion equation
492,332.64 : 679,158.63 = 339,107.31 : x - Step 2: Convert to fraction form
492,332.64/679,158.63 = 339,107.31/x - Step 3: Cross multiply
492,332.64x = 679,158.63 × 339,107.31 - Step 4: Simplify right side
492,332.64x = 230,307,656,082.59 - Step 5: Solve for x
x = 230,307,656,082.59/492,332.64 - Step 6: Final answer
x = 467,788.72
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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.