Finding the Fourth Proportional to 1,069,010.70, 1,603,516.05 and 509,138.70
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Solution
The fourth proportional to 1,069,010.70, 1,603,516.05 and 509,138.70 is: 763,708.05
Step by Step Solution
- Step 1: Write the proportion equation
1,069,010.70 : 1,603,516.05 = 509,138.70 : x - Step 2: Convert to fraction form
1,069,010.70/1,603,516.05 = 509,138.70/x - Step 3: Cross multiply
1,069,010.70x = 1,603,516.05 × 509,138.70 - Step 4: Simplify right side
1,069,010.70x = 816,412,077,126.14 - Step 5: Solve for x
x = 816,412,077,126.14/1,069,010.70 - Step 6: Final answer
x = 763,708.05
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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.