Finding the Fourth Proportional to 430,618.48, 645,508.64 and 205,920.63
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Solution
The fourth proportional to 430,618.48, 645,508.64 and 205,920.63 is: 308,680.55
Step by Step Solution
- Step 1: Write the proportion equation
430,618.48 : 645,508.64 = 205,920.63 : x - Step 2: Convert to fraction form
430,618.48/645,508.64 = 205,920.63/x - Step 3: Cross multiply
430,618.48x = 645,508.64 × 205,920.63 - Step 4: Simplify right side
430,618.48x = 132,923,546,334.05 - Step 5: Solve for x
x = 132,923,546,334.05/430,618.48 - Step 6: Final answer
x = 308,680.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.