Finding the Fourth Proportional to 519,026.42, 716,277.29 and 289,603.74
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Solution
The fourth proportional to 519,026.42, 716,277.29 and 289,603.74 is: 399,664.79
Step by Step Solution
- Step 1: Write the proportion equation
519,026.42 : 716,277.29 = 289,603.74 : x - Step 2: Convert to fraction form
519,026.42/716,277.29 = 289,603.74/x - Step 3: Cross multiply
519,026.42x = 716,277.29 × 289,603.74 - Step 4: Simplify right side
519,026.42x = 207,436,580,613.05 - Step 5: Solve for x
x = 207,436,580,613.05/519,026.42 - Step 6: Final answer
x = 399,664.79
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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.