Finding the Fourth Proportional to 713,428.84, 984,533.12 and 386,740.84
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Solution
The fourth proportional to 713,428.84, 984,533.12 and 386,740.84 is: 533,703.08
Step by Step Solution
- Step 1: Write the proportion equation
713,428.84 : 984,533.12 = 386,740.84 : x - Step 2: Convert to fraction form
713,428.84/984,533.12 = 386,740.84/x - Step 3: Cross multiply
713,428.84x = 984,533.12 × 386,740.84 - Step 4: Simplify right side
713,428.84x = 380,759,165,836.62 - Step 5: Solve for x
x = 380,759,165,836.62/713,428.84 - Step 6: Final answer
x = 533,703.08
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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.