Finding the Fourth Proportional to 626,907.98, 865,136.21 and 340,428.07
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Solution
The fourth proportional to 626,907.98, 865,136.21 and 340,428.07 is: 469,792.47
Step by Step Solution
- Step 1: Write the proportion equation
626,907.98 : 865,136.21 = 340,428.07 : x - Step 2: Convert to fraction form
626,907.98/865,136.21 = 340,428.07/x - Step 3: Cross multiply
626,907.98x = 865,136.21 × 340,428.07 - Step 4: Simplify right side
626,907.98x = 294,516,646,685.21 - Step 5: Solve for x
x = 294,516,646,685.21/626,907.98 - Step 6: Final answer
x = 469,792.47
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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.