Finding the Fourth Proportional to 877,121.44, 1,316,206.95 and 378,485.44
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Solution
The fourth proportional to 877,121.44, 1,316,206.95 and 378,485.44 is: 567,954.61
Step by Step Solution
- Step 1: Write the proportion equation
877,121.44 : 1,316,206.95 = 378,485.44 : x - Step 2: Convert to fraction form
877,121.44/1,316,206.95 = 378,485.44/x - Step 3: Cross multiply
877,121.44x = 1,316,206.95 × 378,485.44 - Step 4: Simplify right side
877,121.44x = 498,165,166,601.81 - Step 5: Solve for x
x = 498,165,166,601.81/877,121.44 - Step 6: Final answer
x = 567,954.61
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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.