Finding the Fourth Proportional to 1,298,110.14, 1,791,499.86 and 717,446.65
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Solution
The fourth proportional to 1,298,110.14, 1,791,499.86 and 717,446.65 is: 990,135.99
Step by Step Solution
- Step 1: Write the proportion equation
1,298,110.14 : 1,791,499.86 = 717,446.65 : x - Step 2: Convert to fraction form
1,298,110.14/1,791,499.86 = 717,446.65/x - Step 3: Cross multiply
1,298,110.14x = 1,791,499.86 × 717,446.65 - Step 4: Simplify right side
1,298,110.14x = 1,285,305,573,032.47 - Step 5: Solve for x
x = 1,285,305,573,032.47/1,298,110.14 - Step 6: Final answer
x = 990,135.99
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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.