Finding the Fourth Proportional to 430,765.84, 646,425.24 and 209,028.88
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Solution
The fourth proportional to 430,765.84, 646,425.24 and 209,028.88 is: 313,677.48
Step by Step Solution
- Step 1: Write the proportion equation
430,765.84 : 646,425.24 = 209,028.88 : x - Step 2: Convert to fraction form
430,765.84/646,425.24 = 209,028.88/x - Step 3: Cross multiply
430,765.84x = 646,425.24 × 209,028.88 - Step 4: Simplify right side
430,765.84x = 135,121,543,920.93 - Step 5: Solve for x
x = 135,121,543,920.93/430,765.84 - Step 6: Final answer
x = 313,677.48
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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.