Finding the Fourth Proportional to 872,656.47, 1,204,237.53 and 485,469.99
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Solution
The fourth proportional to 872,656.47, 1,204,237.53 and 485,469.99 is: 669,932.79
Step by Step Solution
- Step 1: Write the proportion equation
872,656.47 : 1,204,237.53 = 485,469.99 : x - Step 2: Convert to fraction form
872,656.47/1,204,237.53 = 485,469.99/x - Step 3: Cross multiply
872,656.47x = 1,204,237.53 × 485,469.99 - Step 4: Simplify right side
872,656.47x = 584,621,181,646.73 - Step 5: Solve for x
x = 584,621,181,646.73/872,656.47 - Step 6: Final answer
x = 669,932.79
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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.