Finding the Fourth Proportional to 676,489.20, 933,201.18 and 418,283.64
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Solution
The fourth proportional to 676,489.20, 933,201.18 and 418,283.64 is: 577,012.59
Step by Step Solution
- Step 1: Write the proportion equation
676,489.20 : 933,201.18 = 418,283.64 : x - Step 2: Convert to fraction form
676,489.20/933,201.18 = 418,283.64/x - Step 3: Cross multiply
676,489.20x = 933,201.18 × 418,283.64 - Step 4: Simplify right side
676,489.20x = 390,342,786,422.70 - Step 5: Solve for x
x = 390,342,786,422.70/676,489.20 - Step 6: Final answer
x = 577,012.59
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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.