Finding the Fourth Proportional to 626,295.10, 939,431.66 and 433,992.19
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Solution
The fourth proportional to 626,295.10, 939,431.66 and 433,992.19 is: 650,980.67
Step by Step Solution
- Step 1: Write the proportion equation
626,295.10 : 939,431.66 = 433,992.19 : x - Step 2: Convert to fraction form
626,295.10/939,431.66 = 433,992.19/x - Step 3: Cross multiply
626,295.10x = 939,431.66 × 433,992.19 - Step 4: Simplify right side
626,295.10x = 407,706,001,308.78 - Step 5: Solve for x
x = 407,706,001,308.78/626,295.10 - Step 6: Final answer
x = 650,980.67
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1.5x scale
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.