Finding the Fourth Proportional to 647,625.60, 893,724.24 and 357,230.68
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Solution
The fourth proportional to 647,625.60, 893,724.24 and 357,230.68 is: 492,978.84
Step by Step Solution
- Step 1: Write the proportion equation
647,625.60 : 893,724.24 = 357,230.68 : x - Step 2: Convert to fraction form
647,625.60/893,724.24 = 357,230.68/x - Step 3: Cross multiply
647,625.60x = 893,724.24 × 357,230.68 - Step 4: Simplify right side
647,625.60x = 319,265,717,987.68 - Step 5: Solve for x
x = 319,265,717,987.68/647,625.60 - Step 6: Final answer
x = 492,978.84
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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.