Finding the Fourth Proportional to 618,497.70, 927,746.55 and 478,529.70
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Solution
The fourth proportional to 618,497.70, 927,746.55 and 478,529.70 is: 717,794.55
Step by Step Solution
- Step 1: Write the proportion equation
618,497.70 : 927,746.55 = 478,529.70 : x - Step 2: Convert to fraction form
618,497.70/927,746.55 = 478,529.70/x - Step 3: Cross multiply
618,497.70x = 927,746.55 × 478,529.70 - Step 4: Simplify right side
618,497.70x = 443,954,278,247.54 - Step 5: Solve for x
x = 443,954,278,247.54/618,497.70 - Step 6: Final answer
x = 717,794.55
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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.