Finding the Fourth Proportional to 556,778.68, 768,356.60 and 302,129.88
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Solution
The fourth proportional to 556,778.68, 768,356.60 and 302,129.88 is: 416,940.33
Step by Step Solution
- Step 1: Write the proportion equation
556,778.68 : 768,356.60 = 302,129.88 : x - Step 2: Convert to fraction form
556,778.68/768,356.60 = 302,129.88/x - Step 3: Cross multiply
556,778.68x = 768,356.60 × 302,129.88 - Step 4: Simplify right side
556,778.68x = 232,143,487,355.21 - Step 5: Solve for x
x = 232,143,487,355.21/556,778.68 - Step 6: Final answer
x = 416,940.33
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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.