Finding the Fourth Proportional to 818,416.41, 1,129,414.98 and 474,451.76
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Solution
The fourth proportional to 818,416.41, 1,129,414.98 and 474,451.76 is: 654,743.63
Step by Step Solution
- Step 1: Write the proportion equation
818,416.41 : 1,129,414.98 = 474,451.76 : x - Step 2: Convert to fraction form
818,416.41/1,129,414.98 = 474,451.76/x - Step 3: Cross multiply
818,416.41x = 1,129,414.98 × 474,451.76 - Step 4: Simplify right side
818,416.41x = 535,852,929,634.10 - Step 5: Solve for x
x = 535,852,929,634.10/818,416.41 - Step 6: Final answer
x = 654,743.63
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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.