Finding the Fourth Proportional to 669,638.29, 924,107.55 and 363,720.63
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Solution
The fourth proportional to 669,638.29, 924,107.55 and 363,720.63 is: 501,938.11
Step by Step Solution
- Step 1: Write the proportion equation
669,638.29 : 924,107.55 = 363,720.63 : x - Step 2: Convert to fraction form
669,638.29/924,107.55 = 363,720.63/x - Step 3: Cross multiply
669,638.29x = 924,107.55 × 363,720.63 - Step 4: Simplify right side
669,638.29x = 336,116,980,273.76 - Step 5: Solve for x
x = 336,116,980,273.76/669,638.29 - Step 6: Final answer
x = 501,938.11
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.