Finding the Fourth Proportional to 837,638.91, 1,155,908.12 and 455,657.49
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Solution
The fourth proportional to 837,638.91, 1,155,908.12 and 455,657.49 is: 628,789.07
Step by Step Solution
- Step 1: Write the proportion equation
837,638.91 : 1,155,908.12 = 455,657.49 : x - Step 2: Convert to fraction form
837,638.91/1,155,908.12 = 455,657.49/x - Step 3: Cross multiply
837,638.91x = 1,155,908.12 × 455,657.49 - Step 4: Simplify right side
837,638.91x = 526,698,190,351.53 - Step 5: Solve for x
x = 526,698,190,351.53/837,638.91 - Step 6: Final answer
x = 628,789.07
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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.