Finding the Fourth Proportional to 838,340.36, 1,156,909.68 and 456,369.92
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Solution
The fourth proportional to 838,340.36, 1,156,909.68 and 456,369.92 is: 629,790.48
Step by Step Solution
- Step 1: Write the proportion equation
838,340.36 : 1,156,909.68 = 456,369.92 : x - Step 2: Convert to fraction form
838,340.36/1,156,909.68 = 456,369.92/x - Step 3: Cross multiply
838,340.36x = 1,156,909.68 × 456,369.92 - Step 4: Simplify right side
838,340.36x = 527,978,778,108.83 - Step 5: Solve for x
x = 527,978,778,108.83/838,340.36 - Step 6: Final answer
x = 629,790.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.