Finding the Fourth Proportional to 565,426.09, 780,288.15 and 307,302.99
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Solution
The fourth proportional to 565,426.09, 780,288.15 and 307,302.99 is: 424,078.21
Step by Step Solution
- Step 1: Write the proportion equation
565,426.09 : 780,288.15 = 307,302.99 : x - Step 2: Convert to fraction form
565,426.09/780,288.15 = 307,302.99/x - Step 3: Cross multiply
565,426.09x = 780,288.15 × 307,302.99 - Step 4: Simplify right side
565,426.09x = 239,784,881,556.57 - Step 5: Solve for x
x = 239,784,881,556.57/565,426.09 - Step 6: Final answer
x = 424,078.21
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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.