Finding the Fourth Proportional to 430,875.26, 645,707.93 and 340,520.72
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Solution
The fourth proportional to 430,875.26, 645,707.93 and 340,520.72 is: 510,302.99
Step by Step Solution
- Step 1: Write the proportion equation
430,875.26 : 645,707.93 = 340,520.72 : x - Step 2: Convert to fraction form
430,875.26/645,707.93 = 340,520.72/x - Step 3: Cross multiply
430,875.26x = 645,707.93 × 340,520.72 - Step 4: Simplify right side
430,875.26x = 219,876,929,233.31 - Step 5: Solve for x
x = 219,876,929,233.31/430,875.26 - Step 6: Final answer
x = 510,302.99
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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.