Finding the Fourth Proportional to 631,924.94, 872,062.21 and 359,988.80
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Solution
The fourth proportional to 631,924.94, 872,062.21 and 359,988.80 is: 496,787.85
Step by Step Solution
- Step 1: Write the proportion equation
631,924.94 : 872,062.21 = 359,988.80 : x - Step 2: Convert to fraction form
631,924.94/872,062.21 = 359,988.80/x - Step 3: Cross multiply
631,924.94x = 872,062.21 × 359,988.80 - Step 4: Simplify right side
631,924.94x = 313,932,628,503.25 - Step 5: Solve for x
x = 313,932,628,503.25/631,924.94 - Step 6: Final answer
x = 496,787.85
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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.