Finding the Fourth Proportional to 621,415.19, 932,995.53 and 318,026.31
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Solution
The fourth proportional to 621,415.19, 932,995.53 and 318,026.31 is: 477,486.12
Step by Step Solution
- Step 1: Write the proportion equation
621,415.19 : 932,995.53 = 318,026.31 : x - Step 2: Convert to fraction form
621,415.19/932,995.53 = 318,026.31/x - Step 3: Cross multiply
621,415.19x = 932,995.53 × 318,026.31 - Step 4: Simplify right side
621,415.19x = 296,717,125,652.39 - Step 5: Solve for x
x = 296,717,125,652.39/621,415.19 - Step 6: Final answer
x = 477,486.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.