Finding the Fourth Proportional to 472,721.99, 709,085.59 and 117,736.03
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Solution
The fourth proportional to 472,721.99, 709,085.59 and 117,736.03 is: 176,604.70
Step by Step Solution
- Step 1: Write the proportion equation
472,721.99 : 709,085.59 = 117,736.03 : x - Step 2: Convert to fraction form
472,721.99/709,085.59 = 117,736.03/x - Step 3: Cross multiply
472,721.99x = 709,085.59 × 117,736.03 - Step 4: Simplify right side
472,721.99x = 83,484,923,551.09 - Step 5: Solve for x
x = 83,484,923,551.09/472,721.99 - Step 6: Final answer
x = 176,604.70
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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.