Finding the Fourth Proportional to 346,709.70, 520,064.55 and 307,343.70
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Solution
The fourth proportional to 346,709.70, 520,064.55 and 307,343.70 is: 461,015.55
Step by Step Solution
- Step 1: Write the proportion equation
346,709.70 : 520,064.55 = 307,343.70 : x - Step 2: Convert to fraction form
346,709.70/520,064.55 = 307,343.70/x - Step 3: Cross multiply
346,709.70x = 520,064.55 × 307,343.70 - Step 4: Simplify right side
346,709.70x = 159,838,563,035.84 - Step 5: Solve for x
x = 159,838,563,035.84/346,709.70 - Step 6: Final answer
x = 461,015.55
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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.