Finding the Fourth Proportional to 487,918.59, 673,740.97 and 306,688.88
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Solution
The fourth proportional to 487,918.59, 673,740.97 and 306,688.88 is: 423,490.45
Step by Step Solution
- Step 1: Write the proportion equation
487,918.59 : 673,740.97 = 306,688.88 : x - Step 2: Convert to fraction form
487,918.59/673,740.97 = 306,688.88/x - Step 3: Cross multiply
487,918.59x = 673,740.97 × 306,688.88 - Step 4: Simplify right side
487,918.59x = 206,628,863,499.41 - Step 5: Solve for x
x = 206,628,863,499.41/487,918.59 - Step 6: Final answer
x = 423,490.45
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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.