Finding the Fourth Proportional to 490,674.80, 677,134.96 and 272,886.53
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Solution
The fourth proportional to 490,674.80, 677,134.96 and 272,886.53 is: 376,585.48
Step by Step Solution
- Step 1: Write the proportion equation
490,674.80 : 677,134.96 = 272,886.53 : x - Step 2: Convert to fraction form
490,674.80/677,134.96 = 272,886.53/x - Step 3: Cross multiply
490,674.80x = 677,134.96 × 272,886.53 - Step 4: Simplify right side
490,674.80x = 184,781,005,508.20 - Step 5: Solve for x
x = 184,781,005,508.20/490,674.80 - Step 6: Final answer
x = 376,585.48
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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.