Finding the Fourth Proportional to 643,046.96, 887,444.62 and 356,567.06
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Solution
The fourth proportional to 643,046.96, 887,444.62 and 356,567.06 is: 492,084.62
Step by Step Solution
- Step 1: Write the proportion equation
643,046.96 : 887,444.62 = 356,567.06 : x - Step 2: Convert to fraction form
643,046.96/887,444.62 = 356,567.06/x - Step 3: Cross multiply
643,046.96x = 887,444.62 × 356,567.06 - Step 4: Simplify right side
643,046.96x = 316,433,519,066.22 - Step 5: Solve for x
x = 316,433,519,066.22/643,046.96 - Step 6: Final answer
x = 492,084.62
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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.