Finding the Fourth Proportional to 612,735.29, 919,964.07 and 313,430.68
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Solution
The fourth proportional to 612,735.29, 919,964.07 and 313,430.68 is: 470,586.51
Step by Step Solution
- Step 1: Write the proportion equation
612,735.29 : 919,964.07 = 313,430.68 : x - Step 2: Convert to fraction form
612,735.29/919,964.07 = 313,430.68/x - Step 3: Cross multiply
612,735.29x = 919,964.07 × 313,430.68 - Step 4: Simplify right side
612,735.29x = 288,344,964,035.67 - Step 5: Solve for x
x = 288,344,964,035.67/612,735.29 - Step 6: Final answer
x = 470,586.51
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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.