Finding the Fourth Proportional to 643,272.74, 887,822.67 and 356,885.09
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Solution
The fourth proportional to 643,272.74, 887,822.67 and 356,885.09 is: 492,560.39
Step by Step Solution
- Step 1: Write the proportion equation
643,272.74 : 887,822.67 = 356,885.09 : x - Step 2: Convert to fraction form
643,272.74/887,822.67 = 356,885.09/x - Step 3: Cross multiply
643,272.74x = 887,822.67 × 356,885.09 - Step 4: Simplify right side
643,272.74x = 316,850,669,047.88 - Step 5: Solve for x
x = 316,850,669,047.88/643,272.74 - Step 6: Final answer
x = 492,560.39
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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.