Finding the Fourth Proportional to 518,976.99, 778,595.09 and 144,996.75
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Solution
The fourth proportional to 518,976.99, 778,595.09 and 144,996.75 is: 217,531.33
Step by Step Solution
- Step 1: Write the proportion equation
518,976.99 : 778,595.09 = 144,996.75 : x - Step 2: Convert to fraction form
518,976.99/778,595.09 = 144,996.75/x - Step 3: Cross multiply
518,976.99x = 778,595.09 × 144,996.75 - Step 4: Simplify right side
518,976.99x = 112,893,756,890.97 - Step 5: Solve for x
x = 112,893,756,890.97/518,976.99 - Step 6: Final answer
x = 217,531.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.