Finding the Fourth Proportional to 690,067.19, 952,178.96 and 384,135.79
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Solution
The fourth proportional to 690,067.19, 952,178.96 and 384,135.79 is: 530,044.06
Step by Step Solution
- Step 1: Write the proportion equation
690,067.19 : 952,178.96 = 384,135.79 : x - Step 2: Convert to fraction form
690,067.19/952,178.96 = 384,135.79/x - Step 3: Cross multiply
690,067.19x = 952,178.96 × 384,135.79 - Step 4: Simplify right side
690,067.19x = 365,766,014,848.98 - Step 5: Solve for x
x = 365,766,014,848.98/690,067.19 - Step 6: Final answer
x = 530,044.06
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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.