Finding the Fourth Proportional to 683,935.99, 943,880.54 and 378,005.79
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Solution
The fourth proportional to 683,935.99, 943,880.54 and 378,005.79 is: 521,675.00
Step by Step Solution
- Step 1: Write the proportion equation
683,935.99 : 943,880.54 = 378,005.79 : x - Step 2: Convert to fraction form
683,935.99/943,880.54 = 378,005.79/x - Step 3: Cross multiply
683,935.99x = 943,880.54 × 378,005.79 - Step 4: Simplify right side
683,935.99x = 356,792,307,298.30 - Step 5: Solve for x
x = 356,792,307,298.30/683,935.99 - Step 6: Final answer
x = 521,675.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.