Finding the Fourth Proportional to 490,135.40, 676,573.86 and 476,652.52
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Solution
The fourth proportional to 490,135.40, 676,573.86 and 476,652.52 is: 657,962.34
Step by Step Solution
- Step 1: Write the proportion equation
490,135.40 : 676,573.86 = 476,652.52 : x - Step 2: Convert to fraction form
490,135.40/676,573.86 = 476,652.52/x - Step 3: Cross multiply
490,135.40x = 676,573.86 × 476,652.52 - Step 4: Simplify right side
490,135.40x = 322,490,635,335.13 - Step 5: Solve for x
x = 322,490,635,335.13/490,135.40 - Step 6: Final answer
x = 657,962.34
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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.