Finding the Fourth Proportional to 1,288,467.93, 1,778,107.16 and 707,744.75
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Solution
The fourth proportional to 1,288,467.93, 1,778,107.16 and 707,744.75 is: 976,699.53
Step by Step Solution
- Step 1: Write the proportion equation
1,288,467.93 : 1,778,107.16 = 707,744.75 : x - Step 2: Convert to fraction form
1,288,467.93/1,778,107.16 = 707,744.75/x - Step 3: Cross multiply
1,288,467.93x = 1,778,107.16 × 707,744.75 - Step 4: Simplify right side
1,288,467.93x = 1,258,446,011,327.95 - Step 5: Solve for x
x = 1,258,446,011,327.95/1,288,467.93 - Step 6: Final answer
x = 976,699.53
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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.