Finding the Fourth Proportional to 516,903.76, 713,029.64 and 322,975.12
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Solution
The fourth proportional to 516,903.76, 713,029.64 and 322,975.12 is: 445,519.75
Step by Step Solution
- Step 1: Write the proportion equation
516,903.76 : 713,029.64 = 322,975.12 : x - Step 2: Convert to fraction form
516,903.76/713,029.64 = 322,975.12/x - Step 3: Cross multiply
516,903.76x = 713,029.64 × 322,975.12 - Step 4: Simplify right side
516,903.76x = 230,290,833,542.56 - Step 5: Solve for x
x = 230,290,833,542.56/516,903.76 - Step 6: Final answer
x = 445,519.75
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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.