Finding the Fourth Proportional to 556,784.16, 768,364.20 and 302,135.28
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Solution
The fourth proportional to 556,784.16, 768,364.20 and 302,135.28 is: 416,947.80
Step by Step Solution
- Step 1: Write the proportion equation
556,784.16 : 768,364.20 = 302,135.28 : x - Step 2: Convert to fraction form
556,784.16/768,364.20 = 302,135.28/x - Step 3: Cross multiply
556,784.16x = 768,364.20 × 302,135.28 - Step 4: Simplify right side
556,784.16x = 232,149,932,708.98 - Step 5: Solve for x
x = 232,149,932,708.98/556,784.16 - Step 6: Final answer
x = 416,947.80
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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.