Finding the Fourth Proportional to 912,177.80, 1,368,266.70 and 885,933.80
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Solution
The fourth proportional to 912,177.80, 1,368,266.70 and 885,933.80 is: 1,328,900.70
Step by Step Solution
- Step 1: Write the proportion equation
912,177.80 : 1,368,266.70 = 885,933.80 : x - Step 2: Convert to fraction form
912,177.80/1,368,266.70 = 885,933.80/x - Step 3: Cross multiply
912,177.80x = 1,368,266.70 × 885,933.80 - Step 4: Simplify right side
912,177.80x = 1,212,193,716,944.46 - Step 5: Solve for x
x = 1,212,193,716,944.46/912,177.80 - Step 6: Final answer
x = 1,328,900.70
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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.