Finding the Fourth Proportional to 719,689.74, 993,201.39 and 447,918.54
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Solution
The fourth proportional to 719,689.74, 993,201.39 and 447,918.54 is: 618,145.98
Step by Step Solution
- Step 1: Write the proportion equation
719,689.74 : 993,201.39 = 447,918.54 : x - Step 2: Convert to fraction form
719,689.74/993,201.39 = 447,918.54/x - Step 3: Cross multiply
719,689.74x = 993,201.39 × 447,918.54 - Step 4: Simplify right side
719,689.74x = 444,873,316,534.77 - Step 5: Solve for x
x = 444,873,316,534.77/719,689.74 - Step 6: Final answer
x = 618,145.98
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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.