Finding the Fourth Proportional to 436,478.47, 654,745.38 and 136,970.87
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Solution
The fourth proportional to 436,478.47, 654,745.38 and 136,970.87 is: 205,464.99
Step by Step Solution
- Step 1: Write the proportion equation
436,478.47 : 654,745.38 = 136,970.87 : x - Step 2: Convert to fraction form
436,478.47/654,745.38 = 136,970.87/x - Step 3: Cross multiply
436,478.47x = 654,745.38 × 136,970.87 - Step 4: Simplify right side
436,478.47x = 89,681,044,327.08 - Step 5: Solve for x
x = 89,681,044,327.08/436,478.47 - Step 6: Final answer
x = 205,464.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.