Finding the Fourth Proportional to 1,999,128.54, 2,755,927.76 and 1,425,172.26
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Solution
The fourth proportional to 1,999,128.54, 2,755,927.76 and 1,425,172.26 is: 1,964,691.97
Step by Step Solution
- Step 1: Write the proportion equation
1,999,128.54 : 2,755,927.76 = 1,425,172.26 : x - Step 2: Convert to fraction form
1,999,128.54/2,755,927.76 = 1,425,172.26/x - Step 3: Cross multiply
1,999,128.54x = 2,755,927.76 × 1,425,172.26 - Step 4: Simplify right side
1,999,128.54x = 3,927,671,786,990.08 - Step 5: Solve for x
x = 3,927,671,786,990.08/1,999,128.54 - Step 6: Final answer
x = 1,964,691.97
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.