Finding the Fourth Proportional to 945,224.76, 1,303,959.96 and 639,408.18
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Solution
The fourth proportional to 945,224.76, 1,303,959.96 and 639,408.18 is: 882,078.74
Step by Step Solution
- Step 1: Write the proportion equation
945,224.76 : 1,303,959.96 = 639,408.18 : x - Step 2: Convert to fraction form
945,224.76/1,303,959.96 = 639,408.18/x - Step 3: Cross multiply
945,224.76x = 1,303,959.96 × 639,408.18 - Step 4: Simplify right side
945,224.76x = 833,762,664,816.47 - Step 5: Solve for x
x = 833,762,664,816.47/945,224.76 - Step 6: Final answer
x = 882,078.74
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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.