Finding the Fourth Proportional to 392,455.80, 588,683.70 and 313,723.80
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Solution
The fourth proportional to 392,455.80, 588,683.70 and 313,723.80 is: 470,585.70
Step by Step Solution
- Step 1: Write the proportion equation
392,455.80 : 588,683.70 = 313,723.80 : x - Step 2: Convert to fraction form
392,455.80/588,683.70 = 313,723.80/x - Step 3: Cross multiply
392,455.80x = 588,683.70 × 313,723.80 - Step 4: Simplify right side
392,455.80x = 184,684,087,362.06 - Step 5: Solve for x
x = 184,684,087,362.06/392,455.80 - Step 6: Final answer
x = 470,585.70
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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.