Finding the Fourth Proportional to 553,908.84, 764,394.74 and 299,260.23
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Solution
The fourth proportional to 553,908.84, 764,394.74 and 299,260.23 is: 412,979.41
Step by Step Solution
- Step 1: Write the proportion equation
553,908.84 : 764,394.74 = 299,260.23 : x - Step 2: Convert to fraction form
553,908.84/764,394.74 = 299,260.23/x - Step 3: Cross multiply
553,908.84x = 764,394.74 × 299,260.23 - Step 4: Simplify right side
553,908.84x = 228,752,945,703.19 - Step 5: Solve for x
x = 228,752,945,703.19/553,908.84 - Step 6: Final answer
x = 412,979.41
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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.