Finding the Fourth Proportional to 313,695.87, 470,545.38 and 77,038.62
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Solution
The fourth proportional to 313,695.87, 470,545.38 and 77,038.62 is: 115,558.32
Step by Step Solution
- Step 1: Write the proportion equation
313,695.87 : 470,545.38 = 77,038.62 : x - Step 2: Convert to fraction form
313,695.87/470,545.38 = 77,038.62/x - Step 3: Cross multiply
313,695.87x = 470,545.38 × 77,038.62 - Step 4: Simplify right side
313,695.87x = 36,250,166,722.58 - Step 5: Solve for x
x = 36,250,166,722.58/313,695.87 - Step 6: Final answer
x = 115,558.32
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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.