Finding the Fourth Proportional to 801,424.34, 1,105,979.19 and 438,842.42
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Solution
The fourth proportional to 801,424.34, 1,105,979.19 and 438,842.42 is: 605,609.99
Step by Step Solution
- Step 1: Write the proportion equation
801,424.34 : 1,105,979.19 = 438,842.42 : x - Step 2: Convert to fraction form
801,424.34/1,105,979.19 = 438,842.42/x - Step 3: Cross multiply
801,424.34x = 1,105,979.19 × 438,842.42 - Step 4: Simplify right side
801,424.34x = 485,350,584,209.24 - Step 5: Solve for x
x = 485,350,584,209.24/801,424.34 - Step 6: Final answer
x = 605,609.99
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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.