Finding the Fourth Proportional to 643,927.68, 888,733.44 and 372,005.82
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Solution
The fourth proportional to 643,927.68, 888,733.44 and 372,005.82 is: 513,433.45
Step by Step Solution
- Step 1: Write the proportion equation
643,927.68 : 888,733.44 = 372,005.82 : x - Step 2: Convert to fraction form
643,927.68/888,733.44 = 372,005.82/x - Step 3: Cross multiply
643,927.68x = 888,733.44 × 372,005.82 - Step 4: Simplify right side
643,927.68x = 330,614,012,108.62 - Step 5: Solve for x
x = 330,614,012,108.62/643,927.68 - Step 6: Final answer
x = 513,433.45
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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.