Finding the Fourth Proportional to 430,765.13, 645,565.41 and 311,026.88
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Solution
The fourth proportional to 430,765.13, 645,565.41 and 311,026.88 is: 466,119.89
Step by Step Solution
- Step 1: Write the proportion equation
430,765.13 : 645,565.41 = 311,026.88 : x - Step 2: Convert to fraction form
430,765.13/645,565.41 = 311,026.88/x - Step 3: Cross multiply
430,765.13x = 645,565.41 × 311,026.88 - Step 4: Simplify right side
430,765.13x = 200,788,196,922.13 - Step 5: Solve for x
x = 200,788,196,922.13/430,765.13 - Step 6: Final answer
x = 466,119.89
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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.