Finding the Fourth Proportional to 740,666.36, 1,021,747.02 and 485,982.20
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Solution
The fourth proportional to 740,666.36, 1,021,747.02 and 485,982.20 is: 670,410.99
Step by Step Solution
- Step 1: Write the proportion equation
740,666.36 : 1,021,747.02 = 485,982.20 : x - Step 2: Convert to fraction form
740,666.36/1,021,747.02 = 485,982.20/x - Step 3: Cross multiply
740,666.36x = 1,021,747.02 × 485,982.20 - Step 4: Simplify right side
740,666.36x = 496,550,864,623.04 - Step 5: Solve for x
x = 496,550,864,623.04/740,666.36 - Step 6: Final answer
x = 670,410.99
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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.