Finding the Fourth Proportional to 415,807.74, 623,646.81 and 135,323.10
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Solution
The fourth proportional to 415,807.74, 623,646.81 and 135,323.10 is: 202,963.56
Step by Step Solution
- Step 1: Write the proportion equation
415,807.74 : 623,646.81 = 135,323.10 : x - Step 2: Convert to fraction form
415,807.74/623,646.81 = 135,323.10/x - Step 3: Cross multiply
415,807.74x = 623,646.81 × 135,323.10 - Step 4: Simplify right side
415,807.74x = 84,393,819,634.31 - Step 5: Solve for x
x = 84,393,819,634.31/415,807.74 - Step 6: Final answer
x = 202,963.56
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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.