Finding the Fourth Proportional to 508,407.45, 701,578.74 and 278,959.02
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Solution
The fourth proportional to 508,407.45, 701,578.74 and 278,959.02 is: 384,950.53
Step by Step Solution
- Step 1: Write the proportion equation
508,407.45 : 701,578.74 = 278,959.02 : x - Step 2: Convert to fraction form
508,407.45/701,578.74 = 278,959.02/x - Step 3: Cross multiply
508,407.45x = 701,578.74 × 278,959.02 - Step 4: Simplify right side
508,407.45x = 195,711,717,763.24 - Step 5: Solve for x
x = 195,711,717,763.24/508,407.45 - Step 6: Final answer
x = 384,950.53
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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.