Finding the Fourth Proportional to 825,438.24, 1,138,685.52 and 539,125.92
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Solution
The fourth proportional to 825,438.24, 1,138,685.52 and 539,125.92 is: 743,719.94
Step by Step Solution
- Step 1: Write the proportion equation
825,438.24 : 1,138,685.52 = 539,125.92 : x - Step 2: Convert to fraction form
825,438.24/1,138,685.52 = 539,125.92/x - Step 3: Cross multiply
825,438.24x = 1,138,685.52 × 539,125.92 - Step 4: Simplify right side
825,438.24x = 613,894,878,560.68 - Step 5: Solve for x
x = 613,894,878,560.68/825,438.24 - Step 6: Final answer
x = 743,719.94
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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.