Finding the Fourth Proportional to 578,192.10, 866,918.16 and 278,074.95
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Solution
The fourth proportional to 578,192.10, 866,918.16 and 278,074.95 is: 416,934.48
Step by Step Solution
- Step 1: Write the proportion equation
578,192.10 : 866,918.16 = 278,074.95 : x - Step 2: Convert to fraction form
578,192.10/866,918.16 = 278,074.95/x - Step 3: Cross multiply
578,192.10x = 866,918.16 × 278,074.95 - Step 4: Simplify right side
578,192.10x = 241,068,223,996.09 - Step 5: Solve for x
x = 241,068,223,996.09/578,192.10 - Step 6: Final answer
x = 416,934.48
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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.