Finding the Fourth Proportional to 775,869.18, 1,070,692.47 and 436,330.14
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Solution
The fourth proportional to 775,869.18, 1,070,692.47 and 436,330.14 is: 602,131.66
Step by Step Solution
- Step 1: Write the proportion equation
775,869.18 : 1,070,692.47 = 436,330.14 : x - Step 2: Convert to fraction form
775,869.18/1,070,692.47 = 436,330.14/x - Step 3: Cross multiply
775,869.18x = 1,070,692.47 × 436,330.14 - Step 4: Simplify right side
775,869.18x = 467,175,395,332.05 - Step 5: Solve for x
x = 467,175,395,332.05/775,869.18 - Step 6: Final answer
x = 602,131.66
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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.