Finding the Fourth Proportional to 559,980.79, 772,774.26 and 305,331.97
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Solution
The fourth proportional to 559,980.79, 772,774.26 and 305,331.97 is: 421,358.54
Step by Step Solution
- Step 1: Write the proportion equation
559,980.79 : 772,774.26 = 305,331.97 : x - Step 2: Convert to fraction form
559,980.79/772,774.26 = 305,331.97/x - Step 3: Cross multiply
559,980.79x = 772,774.26 × 305,331.97 - Step 4: Simplify right side
559,980.79x = 235,952,687,171.09 - Step 5: Solve for x
x = 235,952,687,171.09/559,980.79 - Step 6: Final answer
x = 421,358.54
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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.