Finding the Fourth Proportional to 407,402.84, 562,319.27 and 278,393.54
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Solution
The fourth proportional to 407,402.84, 562,319.27 and 278,393.54 is: 384,253.70
Step by Step Solution
- Step 1: Write the proportion equation
407,402.84 : 562,319.27 = 278,393.54 : x - Step 2: Convert to fraction form
407,402.84/562,319.27 = 278,393.54/x - Step 3: Cross multiply
407,402.84x = 562,319.27 × 278,393.54 - Step 4: Simplify right side
407,402.84x = 156,546,050,599.67 - Step 5: Solve for x
x = 156,546,050,599.67/407,402.84 - Step 6: Final answer
x = 384,253.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.