Finding the Fourth Proportional to 529,495.05, 730,707.97 and 287,778.20
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Solution
The fourth proportional to 529,495.05, 730,707.97 and 287,778.20 is: 397,136.53
Step by Step Solution
- Step 1: Write the proportion equation
529,495.05 : 730,707.97 = 287,778.20 : x - Step 2: Convert to fraction form
529,495.05/730,707.97 = 287,778.20/x - Step 3: Cross multiply
529,495.05x = 730,707.97 × 287,778.20 - Step 4: Simplify right side
529,495.05x = 210,281,824,332.25 - Step 5: Solve for x
x = 210,281,824,332.25/529,495.05 - Step 6: Final answer
x = 397,136.53
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1.5x scale
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.