Finding the Fourth Proportional to 706,854.21, 975,445.36 and 392,515.48
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Solution
The fourth proportional to 706,854.21, 975,445.36 and 392,515.48 is: 541,663.89
Step by Step Solution
- Step 1: Write the proportion equation
706,854.21 : 975,445.36 = 392,515.48 : x - Step 2: Convert to fraction form
706,854.21/975,445.36 = 392,515.48/x - Step 3: Cross multiply
706,854.21x = 975,445.36 × 392,515.48 - Step 4: Simplify right side
706,854.21x = 382,877,403,694.17 - Step 5: Solve for x
x = 382,877,403,694.17/706,854.21 - Step 6: Final answer
x = 541,663.89
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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.