Finding the Fourth Proportional to 873,529.92, 1,205,373.60 and 491,688
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Solution
The fourth proportional to 873,529.92, 1,205,373.60 and 491,688 is: 678,474.45
Step by Step Solution
- Step 1: Write the proportion equation
873,529.92 : 1,205,373.60 = 491,688 : x - Step 2: Convert to fraction form
873,529.92/1,205,373.60 = 491,688/x - Step 3: Cross multiply
873,529.92x = 1,205,373.60 × 491,688 - Step 4: Simplify right side
873,529.92x = 592,667,734,636.80 - Step 5: Solve for x
x = 592,667,734,636.80/873,529.92 - Step 6: Final answer
x = 678,474.45
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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.