Finding the Fourth Proportional to 547,787.40, 821,681.10 and 193,201.80
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Solution
The fourth proportional to 547,787.40, 821,681.10 and 193,201.80 is: 289,802.70
Step by Step Solution
- Step 1: Write the proportion equation
547,787.40 : 821,681.10 = 193,201.80 : x - Step 2: Convert to fraction form
547,787.40/821,681.10 = 193,201.80/x - Step 3: Cross multiply
547,787.40x = 821,681.10 × 193,201.80 - Step 4: Simplify right side
547,787.40x = 158,750,267,545.98 - Step 5: Solve for x
x = 158,750,267,545.98/547,787.40 - Step 6: Final answer
x = 289,802.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.