Finding the Fourth Proportional to 516,036.96, 712,126.08 and 289,680.84
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Solution
The fourth proportional to 516,036.96, 712,126.08 and 289,680.84 is: 399,756.79
Step by Step Solution
- Step 1: Write the proportion equation
516,036.96 : 712,126.08 = 289,680.84 : x - Step 2: Convert to fraction form
516,036.96/712,126.08 = 289,680.84/x - Step 3: Cross multiply
516,036.96x = 712,126.08 × 289,680.84 - Step 4: Simplify right side
516,036.96x = 206,289,281,040.31 - Step 5: Solve for x
x = 206,289,281,040.31/516,036.96 - Step 6: Final answer
x = 399,756.79
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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.