Finding the Fourth Proportional to 2,286,439.53, 3,155,059.12 and 1,319,881.21
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Solution
The fourth proportional to 2,286,439.53, 3,155,059.12 and 1,319,881.21 is: 1,821,304.78
Step by Step Solution
- Step 1: Write the proportion equation
2,286,439.53 : 3,155,059.12 = 1,319,881.21 : x - Step 2: Convert to fraction form
2,286,439.53/3,155,059.12 = 1,319,881.21/x - Step 3: Cross multiply
2,286,439.53x = 3,155,059.12 × 1,319,881.21 - Step 4: Simplify right side
2,286,439.53x = 4,164,303,248,927.14 - Step 5: Solve for x
x = 4,164,303,248,927.14/2,286,439.53 - Step 6: Final answer
x = 1,821,304.78
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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.