Finding the Fourth Proportional to 747,388.12, 1,121,475.84 and 432,066.48
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Solution
The fourth proportional to 747,388.12, 1,121,475.84 and 432,066.48 is: 648,327.30
Step by Step Solution
- Step 1: Write the proportion equation
747,388.12 : 1,121,475.84 = 432,066.48 : x - Step 2: Convert to fraction form
747,388.12/1,121,475.84 = 432,066.48/x - Step 3: Cross multiply
747,388.12x = 1,121,475.84 × 432,066.48 - Step 4: Simplify right side
747,388.12x = 484,552,118,593.84 - Step 5: Solve for x
x = 484,552,118,593.84/747,388.12 - Step 6: Final answer
x = 648,327.30
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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.