Finding the Fourth Proportional to 783,898, 1,081,747.92 and 461,621.68
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Solution
The fourth proportional to 783,898, 1,081,747.92 and 461,621.68 is: 637,019.47
Step by Step Solution
- Step 1: Write the proportion equation
783,898 : 1,081,747.92 = 461,621.68 : x - Step 2: Convert to fraction form
783,898/1,081,747.92 = 461,621.68/x - Step 3: Cross multiply
783,898x = 1,081,747.92 × 461,621.68 - Step 4: Simplify right side
783,898x = 499,358,292,166.91 - Step 5: Solve for x
x = 499,358,292,166.91/783,898 - Step 6: Final answer
x = 637,019.47
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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.