Finding the Fourth Proportional to 837,636.21, 1,155,937.05 and 455,662.08
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Solution
The fourth proportional to 837,636.21, 1,155,937.05 and 455,662.08 is: 628,813.17
Step by Step Solution
- Step 1: Write the proportion equation
837,636.21 : 1,155,937.05 = 455,662.08 : x - Step 2: Convert to fraction form
837,636.21/1,155,937.05 = 455,662.08/x - Step 3: Cross multiply
837,636.21x = 1,155,937.05 × 455,662.08 - Step 4: Simplify right side
837,636.21x = 526,716,680,552.06 - Step 5: Solve for x
x = 526,716,680,552.06/837,636.21 - Step 6: Final answer
x = 628,813.17
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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.