Finding the Fourth Proportional to 818,177.14, 1,128,118.35 and 560,179.18
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Solution
The fourth proportional to 818,177.14, 1,128,118.35 and 560,179.18 is: 772,385.81
Step by Step Solution
- Step 1: Write the proportion equation
818,177.14 : 1,128,118.35 = 560,179.18 : x - Step 2: Convert to fraction form
818,177.14/1,128,118.35 = 560,179.18/x - Step 3: Cross multiply
818,177.14x = 1,128,118.35 × 560,179.18 - Step 4: Simplify right side
818,177.14x = 631,948,412,245.95 - Step 5: Solve for x
x = 631,948,412,245.95/818,177.14 - Step 6: Final answer
x = 772,385.81
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1.5x scale
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.