Finding the Fourth Proportional to 390,905.10, 586,795.05 and 302,550.30
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Solution
The fourth proportional to 390,905.10, 586,795.05 and 302,550.30 is: 454,163.99
Step by Step Solution
- Step 1: Write the proportion equation
390,905.10 : 586,795.05 = 302,550.30 : x - Step 2: Convert to fraction form
390,905.10/586,795.05 = 302,550.30/x - Step 3: Cross multiply
390,905.10x = 586,795.05 × 302,550.30 - Step 4: Simplify right side
390,905.10x = 177,535,018,416.02 - Step 5: Solve for x
x = 177,535,018,416.02/390,905.10 - Step 6: Final answer
x = 454,163.99
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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.