Finding the Fourth Proportional to 519,425.70, 716,804.73 and 289,969.62
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Solution
The fourth proportional to 519,425.70, 716,804.73 and 289,969.62 is: 400,156.55
Step by Step Solution
- Step 1: Write the proportion equation
519,425.70 : 716,804.73 = 289,969.62 : x - Step 2: Convert to fraction form
519,425.70/716,804.73 = 289,969.62/x - Step 3: Cross multiply
519,425.70x = 716,804.73 × 289,969.62 - Step 4: Simplify right side
519,425.70x = 207,851,595,172.30 - Step 5: Solve for x
x = 207,851,595,172.30/519,425.70 - Step 6: Final answer
x = 400,156.55
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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.