Finding the Fourth Proportional to 1,280,390.44, 1,921,791.48 and 649,756.84
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Solution
The fourth proportional to 1,280,390.44, 1,921,791.48 and 649,756.84 is: 975,247.17
Step by Step Solution
- Step 1: Write the proportion equation
1,280,390.44 : 1,921,791.48 = 649,756.84 : x - Step 2: Convert to fraction form
1,280,390.44/1,921,791.48 = 649,756.84/x - Step 3: Cross multiply
1,280,390.44x = 1,921,791.48 × 649,756.84 - Step 4: Simplify right side
1,280,390.44x = 1,248,697,159,183.72 - Step 5: Solve for x
x = 1,248,697,159,183.72/1,280,390.44 - Step 6: Final answer
x = 975,247.17
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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.