Finding the Fourth Proportional to 1,257,905.36, 1,883,983.56 and 987,417.80
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Solution
The fourth proportional to 1,257,905.36, 1,883,983.56 and 987,417.80 is: 1,478,870.32
Step by Step Solution
- Step 1: Write the proportion equation
1,257,905.36 : 1,883,983.56 = 987,417.80 : x - Step 2: Convert to fraction form
1,257,905.36/1,883,983.56 = 987,417.80/x - Step 3: Cross multiply
1,257,905.36x = 1,883,983.56 × 987,417.80 - Step 4: Simplify right side
1,257,905.36x = 1,860,278,902,051.37 - Step 5: Solve for x
x = 1,860,278,902,051.37/1,257,905.36 - Step 6: Final answer
x = 1,478,870.32
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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.