Finding the Fourth Proportional to 725,407.99, 1,088,952.66 and 389,105.51
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Solution
The fourth proportional to 725,407.99, 1,088,952.66 and 389,105.51 is: 584,109.20
Step by Step Solution
- Step 1: Write the proportion equation
725,407.99 : 1,088,952.66 = 389,105.51 : x - Step 2: Convert to fraction form
725,407.99/1,088,952.66 = 389,105.51/x - Step 3: Cross multiply
725,407.99x = 1,088,952.66 × 389,105.51 - Step 4: Simplify right side
725,407.99x = 423,717,477,412.78 - Step 5: Solve for x
x = 423,717,477,412.78/725,407.99 - Step 6: Final answer
x = 584,109.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.