Finding the Fourth Proportional to 763,462.68, 1,145,328.18 and 290,189.40
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Solution
The fourth proportional to 763,462.68, 1,145,328.18 and 290,189.40 is: 435,335.09
Step by Step Solution
- Step 1: Write the proportion equation
763,462.68 : 1,145,328.18 = 290,189.40 : x - Step 2: Convert to fraction form
763,462.68/1,145,328.18 = 290,189.40/x - Step 3: Cross multiply
763,462.68x = 1,145,328.18 × 290,189.40 - Step 4: Simplify right side
763,462.68x = 332,362,097,357.29 - Step 5: Solve for x
x = 332,362,097,357.29/763,462.68 - Step 6: Final answer
x = 435,335.09
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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.