Finding the Fourth Proportional to 554,576.58, 765,323.12 and 312,858.41
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Solution
The fourth proportional to 554,576.58, 765,323.12 and 312,858.41 is: 431,748.79
Step by Step Solution
- Step 1: Write the proportion equation
554,576.58 : 765,323.12 = 312,858.41 : x - Step 2: Convert to fraction form
554,576.58/765,323.12 = 312,858.41/x - Step 3: Cross multiply
554,576.58x = 765,323.12 × 312,858.41 - Step 4: Simplify right side
554,576.58x = 239,437,769,068.53 - Step 5: Solve for x
x = 239,437,769,068.53/554,576.58 - Step 6: Final answer
x = 431,748.79
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1.5x scale
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.