Finding the Fourth Proportional to 739,022.09, 1,020,354.76 and 478,010.09
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Solution
The fourth proportional to 739,022.09, 1,020,354.76 and 478,010.09 is: 659,980.09
Step by Step Solution
- Step 1: Write the proportion equation
739,022.09 : 1,020,354.76 = 478,010.09 : x - Step 2: Convert to fraction form
739,022.09/1,020,354.76 = 478,010.09/x - Step 3: Cross multiply
739,022.09x = 1,020,354.76 × 478,010.09 - Step 4: Simplify right side
739,022.09x = 487,739,863,167.70 - Step 5: Solve for x
x = 487,739,863,167.70/739,022.09 - Step 6: Final answer
x = 659,980.09
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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.