Finding the Fourth Proportional to 2,318,215.68, 3,199,291.20 and 1,299,686.40
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Solution
The fourth proportional to 2,318,215.68, 3,199,291.20 and 1,299,686.40 is: 1,793,653.32
Step by Step Solution
- Step 1: Write the proportion equation
2,318,215.68 : 3,199,291.20 = 1,299,686.40 : x - Step 2: Convert to fraction form
2,318,215.68/3,199,291.20 = 1,299,686.40/x - Step 3: Cross multiply
2,318,215.68x = 3,199,291.20 × 1,299,686.40 - Step 4: Simplify right side
2,318,215.68x = 4,158,075,262,279.68 - Step 5: Solve for x
x = 4,158,075,262,279.68/2,318,215.68 - Step 6: Final answer
x = 1,793,653.32
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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.