Finding the Fourth Proportional to 641,688.14, 963,478.43 and 357,933.09
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Solution
The fourth proportional to 641,688.14, 963,478.43 and 357,933.09 is: 537,427.44
Step by Step Solution
- Step 1: Write the proportion equation
641,688.14 : 963,478.43 = 357,933.09 : x - Step 2: Convert to fraction form
641,688.14/963,478.43 = 357,933.09/x - Step 3: Cross multiply
641,688.14x = 963,478.43 × 357,933.09 - Step 4: Simplify right side
641,688.14x = 344,860,809,808.58 - Step 5: Solve for x
x = 344,860,809,808.58/641,688.14 - Step 6: Final answer
x = 537,427.44
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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.