Finding the Fourth Proportional to 1,257,903.36, 1,883,980.56 and 987,415.80
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Solution
The fourth proportional to 1,257,903.36, 1,883,980.56 and 987,415.80 is: 1,478,867.32
Step by Step Solution
- Step 1: Write the proportion equation
1,257,903.36 : 1,883,980.56 = 987,415.80 : x - Step 2: Convert to fraction form
1,257,903.36/1,883,980.56 = 987,415.80/x - Step 3: Cross multiply
1,257,903.36x = 1,883,980.56 × 987,415.80 - Step 4: Simplify right side
1,257,903.36x = 1,860,272,171,836.85 - Step 5: Solve for x
x = 1,860,272,171,836.85/1,257,903.36 - Step 6: Final answer
x = 1,478,867.32
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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.