Finding the Fourth Proportional to 458,125.84, 687,352.44 and 278,576.56
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Solution
The fourth proportional to 458,125.84, 687,352.44 and 278,576.56 is: 417,964.37
Step by Step Solution
- Step 1: Write the proportion equation
458,125.84 : 687,352.44 = 278,576.56 : x - Step 2: Convert to fraction form
458,125.84/687,352.44 = 278,576.56/x - Step 3: Cross multiply
458,125.84x = 687,352.44 × 278,576.56 - Step 4: Simplify right side
458,125.84x = 191,480,278,242.81 - Step 5: Solve for x
x = 191,480,278,242.81/458,125.84 - Step 6: Final answer
x = 417,964.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.