Finding the Fourth Proportional to 877,393.94, 1,316,090.92 and 316,428.44
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Solution
The fourth proportional to 877,393.94, 1,316,090.92 and 316,428.44 is: 474,642.66
Step by Step Solution
- Step 1: Write the proportion equation
877,393.94 : 1,316,090.92 = 316,428.44 : x - Step 2: Convert to fraction form
877,393.94/1,316,090.92 = 316,428.44/x - Step 3: Cross multiply
877,393.94x = 1,316,090.92 × 316,428.44 - Step 4: Simplify right side
877,393.94x = 416,448,596,713.77 - Step 5: Solve for x
x = 416,448,596,713.77/877,393.94 - Step 6: Final answer
x = 474,642.66
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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.