Finding the Fourth Proportional to 1,887,876.57, 2,605,246.16 and 1,028,418.38
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Solution
The fourth proportional to 1,887,876.57, 2,605,246.16 and 1,028,418.38 is: 1,419,204.56
Step by Step Solution
- Step 1: Write the proportion equation
1,887,876.57 : 2,605,246.16 = 1,028,418.38 : x - Step 2: Convert to fraction form
1,887,876.57/2,605,246.16 = 1,028,418.38/x - Step 3: Cross multiply
1,887,876.57x = 2,605,246.16 × 1,028,418.38 - Step 4: Simplify right side
1,887,876.57x = 2,679,283,035,368.42 - Step 5: Solve for x
x = 2,679,283,035,368.42/1,887,876.57 - Step 6: Final answer
x = 1,419,204.56
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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.