Finding the Fourth Proportional to 1,340,464.17, 2,012,128.74 and 542,267.49
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Solution
The fourth proportional to 1,340,464.17, 2,012,128.74 and 542,267.49 is: 813,980.73
Step by Step Solution
- Step 1: Write the proportion equation
1,340,464.17 : 2,012,128.74 = 542,267.49 : x - Step 2: Convert to fraction form
1,340,464.17/2,012,128.74 = 542,267.49/x - Step 3: Cross multiply
1,340,464.17x = 2,012,128.74 × 542,267.49 - Step 4: Simplify right side
1,340,464.17x = 1,091,112,001,396.66 - Step 5: Solve for x
x = 1,091,112,001,396.66/1,340,464.17 - Step 6: Final answer
x = 813,980.73
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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.