Finding the Fourth Proportional to 559,781.80, 839,672.70 and 489,797.80
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Solution
The fourth proportional to 559,781.80, 839,672.70 and 489,797.80 is: 734,696.70
Step by Step Solution
- Step 1: Write the proportion equation
559,781.80 : 839,672.70 = 489,797.80 : x - Step 2: Convert to fraction form
559,781.80/839,672.70 = 489,797.80/x - Step 3: Cross multiply
559,781.80x = 839,672.70 × 489,797.80 - Step 4: Simplify right side
559,781.80x = 411,269,841,180.06 - Step 5: Solve for x
x = 411,269,841,180.06/559,781.80 - Step 6: Final answer
x = 734,696.70
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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.