Finding the Fourth Proportional to 748,138.12, 1,122,365.01 and 242,659.84
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Solution
The fourth proportional to 748,138.12, 1,122,365.01 and 242,659.84 is: 364,040.95
Step by Step Solution
- Step 1: Write the proportion equation
748,138.12 : 1,122,365.01 = 242,659.84 : x - Step 2: Convert to fraction form
748,138.12/1,122,365.01 = 242,659.84/x - Step 3: Cross multiply
748,138.12x = 1,122,365.01 × 242,659.84 - Step 4: Simplify right side
748,138.12x = 272,352,913,748.20 - Step 5: Solve for x
x = 272,352,913,748.20/748,138.12 - Step 6: Final answer
x = 364,040.95
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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.