Finding the Fourth Proportional to 430,827.38, 645,237.87 and 415,880.18
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Solution
The fourth proportional to 430,827.38, 645,237.87 and 415,880.18 is: 622,851.88
Step by Step Solution
- Step 1: Write the proportion equation
430,827.38 : 645,237.87 = 415,880.18 : x - Step 2: Convert to fraction form
430,827.38/645,237.87 = 415,880.18/x - Step 3: Cross multiply
430,827.38x = 645,237.87 × 415,880.18 - Step 4: Simplify right side
430,827.38x = 268,341,641,518.42 - Step 5: Solve for x
x = 268,341,641,518.42/430,827.38 - Step 6: Final answer
x = 622,851.88
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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.