Finding the Fourth Proportional to 918,137.70, 1,377,206.55 and 918,137.70
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Solution
The fourth proportional to 918,137.70, 1,377,206.55 and 918,137.70 is: 1,377,206.55
Step by Step Solution
- Step 1: Write the proportion equation
918,137.70 : 1,377,206.55 = 918,137.70 : x - Step 2: Convert to fraction form
918,137.70/1,377,206.55 = 918,137.70/x - Step 3: Cross multiply
918,137.70x = 1,377,206.55 × 918,137.70 - Step 4: Simplify right side
918,137.70x = 1,264,465,254,241.94 - Step 5: Solve for x
x = 1,264,465,254,241.94/918,137.70 - Step 6: Final answer
x = 1,377,206.55
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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.