Finding the Fourth Proportional to 578,857.70, 868,286.55 and 508,873.70
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Solution
The fourth proportional to 578,857.70, 868,286.55 and 508,873.70 is: 763,310.55
Step by Step Solution
- Step 1: Write the proportion equation
578,857.70 : 868,286.55 = 508,873.70 : x - Step 2: Convert to fraction form
578,857.70/868,286.55 = 508,873.70/x - Step 3: Cross multiply
578,857.70x = 868,286.55 × 508,873.70 - Step 4: Simplify right side
578,857.70x = 441,848,189,358.74 - Step 5: Solve for x
x = 441,848,189,358.74/578,857.70 - Step 6: Final answer
x = 763,310.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.