Finding the Fourth Proportional to 643,585.24, 888,088.91 and 381,895.44
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Solution
The fourth proportional to 643,585.24, 888,088.91 and 381,895.44 is: 526,980.86
Step by Step Solution
- Step 1: Write the proportion equation
643,585.24 : 888,088.91 = 381,895.44 : x - Step 2: Convert to fraction form
643,585.24/888,088.91 = 381,895.44/x - Step 3: Cross multiply
643,585.24x = 888,088.91 × 381,895.44 - Step 4: Simplify right side
643,585.24x = 339,157,105,043.57 - Step 5: Solve for x
x = 339,157,105,043.57/643,585.24 - Step 6: Final answer
x = 526,980.86
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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.