Finding the Fourth Proportional to 756,790.21, 1,044,377.53 and 417,270.53
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Solution
The fourth proportional to 756,790.21, 1,044,377.53 and 417,270.53 is: 575,837.21
Step by Step Solution
- Step 1: Write the proportion equation
756,790.21 : 1,044,377.53 = 417,270.53 : x - Step 2: Convert to fraction form
756,790.21/1,044,377.53 = 417,270.53/x - Step 3: Cross multiply
756,790.21x = 1,044,377.53 × 417,270.53 - Step 4: Simplify right side
756,790.21x = 435,787,961,284.48 - Step 5: Solve for x
x = 435,787,961,284.48/756,790.21 - Step 6: Final answer
x = 575,837.21
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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.