Finding the Fourth Proportional to 1,620, 2,430.09 and 465.84
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Solution
The fourth proportional to 1,620, 2,430.09 and 465.84 is: 698.79
Step by Step Solution
- Step 1: Write the proportion equation
1,620 : 2,430.09 = 465.84 : x - Step 2: Convert to fraction form
1,620/2,430.09 = 465.84/x - Step 3: Cross multiply
1,620x = 2,430.09 × 465.84 - Step 4: Simplify right side
1,620x = 1,132,033.13 - Step 5: Solve for x
x = 1,132,033.13/1,620 - Step 6: Final answer
x = 698.79
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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.