Finding the Fourth Proportional to 2,319,262.40, 3,200,473.65 and 1,286,759.18
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Solution
The fourth proportional to 2,319,262.40, 3,200,473.65 and 1,286,759.18 is: 1,775,667.50
Step by Step Solution
- Step 1: Write the proportion equation
2,319,262.40 : 3,200,473.65 = 1,286,759.18 : x - Step 2: Convert to fraction form
2,319,262.40/3,200,473.65 = 1,286,759.18/x - Step 3: Cross multiply
2,319,262.40x = 3,200,473.65 × 1,286,759.18 - Step 4: Simplify right side
2,319,262.40x = 4,118,238,862,312.14 - Step 5: Solve for x
x = 4,118,238,862,312.14/2,319,262.40 - Step 6: Final answer
x = 1,775,667.50
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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.