Finding the Fourth Proportional to 812,772.71, 1,121,613.71 and 445,246.75
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Solution
The fourth proportional to 812,772.71, 1,121,613.71 and 445,246.75 is: 614,433.59
Step by Step Solution
- Step 1: Write the proportion equation
812,772.71 : 1,121,613.71 = 445,246.75 : x - Step 2: Convert to fraction form
812,772.71/1,121,613.71 = 445,246.75/x - Step 3: Cross multiply
812,772.71x = 1,121,613.71 × 445,246.75 - Step 4: Simplify right side
812,772.71x = 499,394,854,102.68 - Step 5: Solve for x
x = 499,394,854,102.68/812,772.71 - Step 6: Final answer
x = 614,433.59
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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.