Finding the Fourth Proportional to 1,221,209.26, 1,684,165.87 and 762,366.41
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Solution
The fourth proportional to 1,221,209.26, 1,684,165.87 and 762,366.41 is: 1,051,377.13
Step by Step Solution
- Step 1: Write the proportion equation
1,221,209.26 : 1,684,165.87 = 762,366.41 : x - Step 2: Convert to fraction form
1,221,209.26/1,684,165.87 = 762,366.41/x - Step 3: Cross multiply
1,221,209.26x = 1,684,165.87 × 762,366.41 - Step 4: Simplify right side
1,221,209.26x = 1,283,951,482,267.46 - Step 5: Solve for x
x = 1,283,951,482,267.46/1,221,209.26 - Step 6: Final answer
x = 1,051,377.13
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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.