Finding the Fourth Proportional to 1,009,755.86, 1,399,358.21 and 990,594.99
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Solution
The fourth proportional to 1,009,755.86, 1,399,358.21 and 990,594.99 is: 1,372,804.35
Step by Step Solution
- Step 1: Write the proportion equation
1,009,755.86 : 1,399,358.21 = 990,594.99 : x - Step 2: Convert to fraction form
1,009,755.86/1,399,358.21 = 990,594.99/x - Step 3: Cross multiply
1,009,755.86x = 1,399,358.21 × 990,594.99 - Step 4: Simplify right side
1,009,755.86x = 1,386,197,227,088.39 - Step 5: Solve for x
x = 1,386,197,227,088.39/1,009,755.86 - Step 6: Final answer
x = 1,372,804.35
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.