Finding the Fourth Proportional to 1,296,987.87, 1,776,865.10 and 1,248,486.73
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Solution
The fourth proportional to 1,296,987.87, 1,776,865.10 and 1,248,486.73 is: 1,710,418.84
Step by Step Solution
- Step 1: Write the proportion equation
1,296,987.87 : 1,776,865.10 = 1,248,486.73 : x - Step 2: Convert to fraction form
1,296,987.87/1,776,865.10 = 1,248,486.73/x - Step 3: Cross multiply
1,296,987.87x = 1,776,865.10 × 1,248,486.73 - Step 4: Simplify right side
1,296,987.87x = 2,218,392,492,347.35 - Step 5: Solve for x
x = 2,218,392,492,347.35/1,296,987.87 - Step 6: Final answer
x = 1,710,418.84
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.