Finding the Fourth Proportional to 519,987.30, 780,090.30 and 295,163.70
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Solution
The fourth proportional to 519,987.30, 780,090.30 and 295,163.70 is: 442,807.62
Step by Step Solution
- Step 1: Write the proportion equation
519,987.30 : 780,090.30 = 295,163.70 : x - Step 2: Convert to fraction form
519,987.30/780,090.30 = 295,163.70/x - Step 3: Cross multiply
519,987.30x = 780,090.30 × 295,163.70 - Step 4: Simplify right side
519,987.30x = 230,254,339,282.11 - Step 5: Solve for x
x = 230,254,339,282.11/519,987.30 - Step 6: Final answer
x = 442,807.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.