Finding the Fourth Proportional to 918,439.92, 1,267,474.50 and 555,930.09
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Solution
The fourth proportional to 918,439.92, 1,267,474.50 and 555,930.09 is: 767,200.12
Step by Step Solution
- Step 1: Write the proportion equation
918,439.92 : 1,267,474.50 = 555,930.09 : x - Step 2: Convert to fraction form
918,439.92/1,267,474.50 = 555,930.09/x - Step 3: Cross multiply
918,439.92x = 1,267,474.50 × 555,930.09 - Step 4: Simplify right side
918,439.92x = 704,627,212,857.71 - Step 5: Solve for x
x = 704,627,212,857.71/918,439.92 - Step 6: Final answer
x = 767,200.12
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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.