Finding the Fourth Proportional to 756,813.28, 1,044,382.80 and 417,275.68
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Solution
The fourth proportional to 756,813.28, 1,044,382.80 and 417,275.68 is: 575,829.67
Step by Step Solution
- Step 1: Write the proportion equation
756,813.28 : 1,044,382.80 = 417,275.68 : x - Step 2: Convert to fraction form
756,813.28/1,044,382.80 = 417,275.68/x - Step 3: Cross multiply
756,813.28x = 1,044,382.80 × 417,275.68 - Step 4: Simplify right side
756,813.28x = 435,795,543,050.30 - Step 5: Solve for x
x = 435,795,543,050.30/756,813.28 - Step 6: Final answer
x = 575,829.67
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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.