Finding the Fourth Proportional to 879,534.84, 1,213,760.40 and 477,126.84
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Solution
The fourth proportional to 879,534.84, 1,213,760.40 and 477,126.84 is: 658,436.30
Step by Step Solution
- Step 1: Write the proportion equation
879,534.84 : 1,213,760.40 = 477,126.84 : x - Step 2: Convert to fraction form
879,534.84/1,213,760.40 = 477,126.84/x - Step 3: Cross multiply
879,534.84x = 1,213,760.40 × 477,126.84 - Step 4: Simplify right side
879,534.84x = 579,117,664,169.14 - Step 5: Solve for x
x = 579,117,664,169.14/879,534.84 - Step 6: Final answer
x = 658,436.30
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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.