Finding the Fourth Proportional to 408,919.47, 613,504.26 and 209,381.00
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Solution
The fourth proportional to 408,919.47, 613,504.26 and 209,381.00 is: 314,135.53
Step by Step Solution
- Step 1: Write the proportion equation
408,919.47 : 613,504.26 = 209,381.00 : x - Step 2: Convert to fraction form
408,919.47/613,504.26 = 209,381.00/x - Step 3: Cross multiply
408,919.47x = 613,504.26 × 209,381.00 - Step 4: Simplify right side
408,919.47x = 128,456,132,395.54 - Step 5: Solve for x
x = 128,456,132,395.54/408,919.47 - Step 6: Final answer
x = 314,135.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.