Finding the Fourth Proportional to 643,673.04, 888,310.44 and 357,193.68
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Solution
The fourth proportional to 643,673.04, 888,310.44 and 357,193.68 is: 492,950.39
Step by Step Solution
- Step 1: Write the proportion equation
643,673.04 : 888,310.44 = 357,193.68 : x - Step 2: Convert to fraction form
643,673.04/888,310.44 = 357,193.68/x - Step 3: Cross multiply
643,673.04x = 888,310.44 × 357,193.68 - Step 4: Simplify right side
643,673.04x = 317,298,875,046.02 - Step 5: Solve for x
x = 317,298,875,046.02/643,673.04 - Step 6: Final answer
x = 492,950.39
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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.