Finding the Fourth Proportional to 1,580,278.50, 2,180,790.12 and 855,126.23
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Solution
The fourth proportional to 1,580,278.50, 2,180,790.12 and 855,126.23 is: 1,180,077.32
Step by Step Solution
- Step 1: Write the proportion equation
1,580,278.50 : 2,180,790.12 = 855,126.23 : x - Step 2: Convert to fraction form
1,580,278.50/2,180,790.12 = 855,126.23/x - Step 3: Cross multiply
1,580,278.50x = 2,180,790.12 × 855,126.23 - Step 4: Simplify right side
1,580,278.50x = 1,864,850,822,832.90 - Step 5: Solve for x
x = 1,864,850,822,832.90/1,580,278.50 - Step 6: Final answer
x = 1,180,077.32
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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.