Finding the Fourth Proportional to 1,207,653.74, 1,809,873.14 and 638,913.46
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Solution
The fourth proportional to 1,207,653.74, 1,809,873.14 and 638,913.46 is: 957,519.75
Step by Step Solution
- Step 1: Write the proportion equation
1,207,653.74 : 1,809,873.14 = 638,913.46 : x - Step 2: Convert to fraction form
1,207,653.74/1,809,873.14 = 638,913.46/x - Step 3: Cross multiply
1,207,653.74x = 1,809,873.14 × 638,913.46 - Step 4: Simplify right side
1,207,653.74x = 1,156,352,310,038.46 - Step 5: Solve for x
x = 1,156,352,310,038.46/1,207,653.74 - Step 6: Final answer
x = 957,519.75
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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.