Finding the Fourth Proportional to 430,707.44, 646,010.28 and 115,188.80
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Solution
The fourth proportional to 430,707.44, 646,010.28 and 115,188.80 is: 172,769.59
Step by Step Solution
- Step 1: Write the proportion equation
430,707.44 : 646,010.28 = 115,188.80 : x - Step 2: Convert to fraction form
430,707.44/646,010.28 = 115,188.80/x - Step 3: Cross multiply
430,707.44x = 646,010.28 × 115,188.80 - Step 4: Simplify right side
430,707.44x = 74,413,148,940.86 - Step 5: Solve for x
x = 74,413,148,940.86/430,707.44 - Step 6: Final answer
x = 172,769.59
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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.