Finding the Fourth Proportional to 748,137.08, 1,122,363.44 and 242,658.81
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Solution
The fourth proportional to 748,137.08, 1,122,363.44 and 242,658.81 is: 364,039.40
Step by Step Solution
- Step 1: Write the proportion equation
748,137.08 : 1,122,363.44 = 242,658.81 : x - Step 2: Convert to fraction form
748,137.08/1,122,363.44 = 242,658.81/x - Step 3: Cross multiply
748,137.08x = 1,122,363.44 × 242,658.81 - Step 4: Simplify right side
748,137.08x = 272,351,376,434.58 - Step 5: Solve for x
x = 272,351,376,434.58/748,137.08 - Step 6: Final answer
x = 364,039.40
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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.