Finding the Fourth Proportional to 570,890.34, 787,794.81 and 312,715.68
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Solution
The fourth proportional to 570,890.34, 787,794.81 and 312,715.68 is: 431,529.09
Step by Step Solution
- Step 1: Write the proportion equation
570,890.34 : 787,794.81 = 312,715.68 : x - Step 2: Convert to fraction form
570,890.34/787,794.81 = 312,715.68/x - Step 3: Cross multiply
570,890.34x = 787,794.81 × 312,715.68 - Step 4: Simplify right side
570,890.34x = 246,355,789,709.62 - Step 5: Solve for x
x = 246,355,789,709.62/570,890.34 - Step 6: Final answer
x = 431,529.09
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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.