Finding the Fourth Proportional to 564,665.20, 779,239.30 and 310,032.80
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Solution
The fourth proportional to 564,665.20, 779,239.30 and 310,032.80 is: 427,845.99
Step by Step Solution
- Step 1: Write the proportion equation
564,665.20 : 779,239.30 = 310,032.80 : x - Step 2: Convert to fraction form
564,665.20/779,239.30 = 310,032.80/x - Step 3: Cross multiply
564,665.20x = 779,239.30 × 310,032.80 - Step 4: Simplify right side
564,665.20x = 241,589,742,049.04 - Step 5: Solve for x
x = 241,589,742,049.04/564,665.20 - Step 6: Final answer
x = 427,845.99
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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.