Finding the Fourth Proportional to 448,029.43, 670,494.11 and 429,428.99
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Solution
The fourth proportional to 448,029.43, 670,494.11 and 429,428.99 is: 642,657.80
Step by Step Solution
- Step 1: Write the proportion equation
448,029.43 : 670,494.11 = 429,428.99 : x - Step 2: Convert to fraction form
448,029.43/670,494.11 = 429,428.99/x - Step 3: Cross multiply
448,029.43x = 670,494.11 × 429,428.99 - Step 4: Simplify right side
448,029.43x = 287,929,607,987.34 - Step 5: Solve for x
x = 287,929,607,987.34/448,029.43 - Step 6: Final answer
x = 642,657.80
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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.