Finding the Fourth Proportional to 643,805.52, 888,379.56 and 357,337.68
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Solution
The fourth proportional to 643,805.52, 888,379.56 and 357,337.68 is: 493,086.00
Step by Step Solution
- Step 1: Write the proportion equation
643,805.52 : 888,379.56 = 357,337.68 : x - Step 2: Convert to fraction form
643,805.52/888,379.56 = 357,337.68/x - Step 3: Cross multiply
643,805.52x = 888,379.56 × 357,337.68 - Step 4: Simplify right side
643,805.52x = 317,451,490,929.82 - Step 5: Solve for x
x = 317,451,490,929.82/643,805.52 - Step 6: Final answer
x = 493,086.00
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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.