Finding the Fourth Proportional to 847,121.84, 1,263,209.98 and 729,548.72
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Solution
The fourth proportional to 847,121.84, 1,263,209.98 and 729,548.72 is: 1,087,887.46
Step by Step Solution
- Step 1: Write the proportion equation
847,121.84 : 1,263,209.98 = 729,548.72 : x - Step 2: Convert to fraction form
847,121.84/1,263,209.98 = 729,548.72/x - Step 3: Cross multiply
847,121.84x = 1,263,209.98 × 729,548.72 - Step 4: Simplify right side
847,121.84x = 921,573,224,000.23 - Step 5: Solve for x
x = 921,573,224,000.23/847,121.84 - Step 6: Final answer
x = 1,087,887.46
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.