Finding the Fourth Proportional to 861,788.25, 1,189,275.99 and 479,823.23
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Solution
The fourth proportional to 861,788.25, 1,189,275.99 and 479,823.23 is: 662,160.63
Step by Step Solution
- Step 1: Write the proportion equation
861,788.25 : 1,189,275.99 = 479,823.23 : x - Step 2: Convert to fraction form
861,788.25/1,189,275.99 = 479,823.23/x - Step 3: Cross multiply
861,788.25x = 1,189,275.99 × 479,823.23 - Step 4: Simplify right side
861,788.25x = 570,642,248,057.10 - Step 5: Solve for x
x = 570,642,248,057.10/861,788.25 - Step 6: Final answer
x = 662,160.63
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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.