Finding the Fourth Proportional to 439,642.36, 659,462.52 and 288,791.65
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Solution
The fourth proportional to 439,642.36, 659,462.52 and 288,791.65 is: 433,186.80
Step by Step Solution
- Step 1: Write the proportion equation
439,642.36 : 659,462.52 = 288,791.65 : x - Step 2: Convert to fraction form
439,642.36/659,462.52 = 288,791.65/x - Step 3: Cross multiply
439,642.36x = 659,462.52 × 288,791.65 - Step 4: Simplify right side
439,642.36x = 190,447,269,263.96 - Step 5: Solve for x
x = 190,447,269,263.96/439,642.36 - Step 6: Final answer
x = 433,186.80
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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.