Finding the Fourth Proportional to 431,294.23, 646,948.05 and 127,719.10
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Solution
The fourth proportional to 431,294.23, 646,948.05 and 127,719.10 is: 191,580.63
Step by Step Solution
- Step 1: Write the proportion equation
431,294.23 : 646,948.05 = 127,719.10 : x - Step 2: Convert to fraction form
431,294.23/646,948.05 = 127,719.10/x - Step 3: Cross multiply
431,294.23x = 646,948.05 × 127,719.10 - Step 4: Simplify right side
431,294.23x = 82,627,620,461.04 - Step 5: Solve for x
x = 82,627,620,461.04/431,294.23 - Step 6: Final answer
x = 191,580.63
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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.