Finding the Fourth Proportional to 918,135, 1,377,281.88 and 253,287
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Solution
The fourth proportional to 918,135, 1,377,281.88 and 253,287 is: 379,952.40
Step by Step Solution
- Step 1: Write the proportion equation
918,135 : 1,377,281.88 = 253,287 : x - Step 2: Convert to fraction form
918,135/1,377,281.88 = 253,287/x - Step 3: Cross multiply
918,135x = 1,377,281.88 × 253,287 - Step 4: Simplify right side
918,135x = 348,847,595,539.56 - Step 5: Solve for x
x = 348,847,595,539.56/918,135 - Step 6: Final answer
x = 379,952.40
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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.