Finding the Fourth Proportional to 1,221,550.66, 1,685,741.99 and 677,686.49
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Solution
The fourth proportional to 1,221,550.66, 1,685,741.99 and 677,686.49 is: 935,208.51
Step by Step Solution
- Step 1: Write the proportion equation
1,221,550.66 : 1,685,741.99 = 677,686.49 : x - Step 2: Convert to fraction form
1,221,550.66/1,685,741.99 = 677,686.49/x - Step 3: Cross multiply
1,221,550.66x = 1,685,741.99 × 677,686.49 - Step 4: Simplify right side
1,221,550.66x = 1,142,404,572,248.72 - Step 5: Solve for x
x = 1,142,404,572,248.72/1,221,550.66 - Step 6: Final answer
x = 935,208.51
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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.