Finding the Fourth Proportional to 1,107,789.84, 1,661,684.76 and 266,341.62
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Solution
The fourth proportional to 1,107,789.84, 1,661,684.76 and 266,341.62 is: 399,512.43
Step by Step Solution
- Step 1: Write the proportion equation
1,107,789.84 : 1,661,684.76 = 266,341.62 : x - Step 2: Convert to fraction form
1,107,789.84/1,661,684.76 = 266,341.62/x - Step 3: Cross multiply
1,107,789.84x = 1,661,684.76 × 266,341.62 - Step 4: Simplify right side
1,107,789.84x = 442,575,810,907.71 - Step 5: Solve for x
x = 442,575,810,907.71/1,107,789.84 - Step 6: Final answer
x = 399,512.43
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1.5x scale
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.