Finding the Fourth Proportional to 424,420.74, 636,732.27 and 124,911.09
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Solution
The fourth proportional to 424,420.74, 636,732.27 and 124,911.09 is: 187,396.41
Step by Step Solution
- Step 1: Write the proportion equation
424,420.74 : 636,732.27 = 124,911.09 : x - Step 2: Convert to fraction form
424,420.74/636,732.27 = 124,911.09/x - Step 3: Cross multiply
424,420.74x = 636,732.27 × 124,911.09 - Step 4: Simplify right side
424,420.74x = 79,534,921,883.87 - Step 5: Solve for x
x = 79,534,921,883.87/424,420.74 - Step 6: Final answer
x = 187,396.41
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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.