Finding the Fourth Proportional to 1,234,278.29, 1,702,618.35 and 717,974.06
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Solution
The fourth proportional to 1,234,278.29, 1,702,618.35 and 717,974.06 is: 990,405.34
Step by Step Solution
- Step 1: Write the proportion equation
1,234,278.29 : 1,702,618.35 = 717,974.06 : x - Step 2: Convert to fraction form
1,234,278.29/1,702,618.35 = 717,974.06/x - Step 3: Cross multiply
1,234,278.29x = 1,702,618.35 × 717,974.06 - Step 4: Simplify right side
1,234,278.29x = 1,222,435,800,866.91 - Step 5: Solve for x
x = 1,222,435,800,866.91/1,234,278.29 - Step 6: Final answer
x = 990,405.34
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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.