Finding the Fourth Proportional to 877,078.09, 1,210,367.91 and 474,670.09
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Solution
The fourth proportional to 877,078.09, 1,210,367.91 and 474,670.09 is: 655,044.80
Step by Step Solution
- Step 1: Write the proportion equation
877,078.09 : 1,210,367.91 = 474,670.09 : x - Step 2: Convert to fraction form
877,078.09/1,210,367.91 = 474,670.09/x - Step 3: Cross multiply
877,078.09x = 1,210,367.91 × 474,670.09 - Step 4: Simplify right side
877,078.09x = 574,525,444,772.81 - Step 5: Solve for x
x = 574,525,444,772.81/877,078.09 - Step 6: Final answer
x = 655,044.80
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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.