Finding the Fourth Proportional to 515,941.93, 712,002.99 and 286,502.95
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Solution
The fourth proportional to 515,941.93, 712,002.99 and 286,502.95 is: 395,375.81
Step by Step Solution
- Step 1: Write the proportion equation
515,941.93 : 712,002.99 = 286,502.95 : x - Step 2: Convert to fraction form
515,941.93/712,002.99 = 286,502.95/x - Step 3: Cross multiply
515,941.93x = 712,002.99 × 286,502.95 - Step 4: Simplify right side
515,941.93x = 203,990,957,043.82 - Step 5: Solve for x
x = 203,990,957,043.82/515,941.93 - Step 6: Final answer
x = 395,375.81
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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.