Finding the Fourth Proportional to 1,008,963.12, 1,392,306.12 and 556,254.12
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Solution
The fourth proportional to 1,008,963.12, 1,392,306.12 and 556,254.12 is: 767,595.96
Step by Step Solution
- Step 1: Write the proportion equation
1,008,963.12 : 1,392,306.12 = 556,254.12 : x - Step 2: Convert to fraction form
1,008,963.12/1,392,306.12 = 556,254.12/x - Step 3: Cross multiply
1,008,963.12x = 1,392,306.12 × 556,254.12 - Step 4: Simplify right side
1,008,963.12x = 774,476,015,551.22 - Step 5: Solve for x
x = 774,476,015,551.22/1,008,963.12 - Step 6: Final answer
x = 767,595.96
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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.