Finding the Fourth Proportional to 713,698.02, 984,916.68 and 391,388.84
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Solution
The fourth proportional to 713,698.02, 984,916.68 and 391,388.84 is: 540,123.95
Step by Step Solution
- Step 1: Write the proportion equation
713,698.02 : 984,916.68 = 391,388.84 : x - Step 2: Convert to fraction form
713,698.02/984,916.68 = 391,388.84/x - Step 3: Cross multiply
713,698.02x = 984,916.68 × 391,388.84 - Step 4: Simplify right side
713,698.02x = 385,485,396,881.85 - Step 5: Solve for x
x = 385,485,396,881.85/713,698.02 - Step 6: Final answer
x = 540,123.95
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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.