Finding the Fourth Proportional to 1,758,368.70, 2,637,553.05 and 428,672.70
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Solution
The fourth proportional to 1,758,368.70, 2,637,553.05 and 428,672.70 is: 643,009.05
Step by Step Solution
- Step 1: Write the proportion equation
1,758,368.70 : 2,637,553.05 = 428,672.70 : x - Step 2: Convert to fraction form
1,758,368.70/2,637,553.05 = 428,672.70/x - Step 3: Cross multiply
1,758,368.70x = 2,637,553.05 × 428,672.70 - Step 4: Simplify right side
1,758,368.70x = 1,130,646,987,336.73 - Step 5: Solve for x
x = 1,130,646,987,336.73/1,758,368.70 - Step 6: Final answer
x = 643,009.05
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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.