Finding the Fourth Proportional to 1,969,101.80, 2,953,652.70 and 639,405.80
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Solution
The fourth proportional to 1,969,101.80, 2,953,652.70 and 639,405.80 is: 959,108.70
Step by Step Solution
- Step 1: Write the proportion equation
1,969,101.80 : 2,953,652.70 = 639,405.80 : x - Step 2: Convert to fraction form
1,969,101.80/2,953,652.70 = 639,405.80/x - Step 3: Cross multiply
1,969,101.80x = 2,953,652.70 × 639,405.80 - Step 4: Simplify right side
1,969,101.80x = 1,888,582,667,565.66 - Step 5: Solve for x
x = 1,888,582,667,565.66/1,969,101.80 - Step 6: Final answer
x = 959,108.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.