Finding the Fourth Proportional to 1,072,449.99, 1,608,317.78 and 432,588.47
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Solution
The fourth proportional to 1,072,449.99, 1,608,317.78 and 432,588.47 is: 648,738.61
Step by Step Solution
- Step 1: Write the proportion equation
1,072,449.99 : 1,608,317.78 = 432,588.47 : x - Step 2: Convert to fraction form
1,072,449.99/1,608,317.78 = 432,588.47/x - Step 3: Cross multiply
1,072,449.99x = 1,608,317.78 × 432,588.47 - Step 4: Simplify right side
1,072,449.99x = 695,739,717,519.47 - Step 5: Solve for x
x = 695,739,717,519.47/1,072,449.99 - Step 6: Final answer
x = 648,738.61
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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.