Finding the Fourth Proportional to 1,913,224.36, 2,640,369.30 and 1,053,784.42
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Solution
The fourth proportional to 1,913,224.36, 2,640,369.30 and 1,053,784.42 is: 1,454,288.42
Step by Step Solution
- Step 1: Write the proportion equation
1,913,224.36 : 2,640,369.30 = 1,053,784.42 : x - Step 2: Convert to fraction form
1,913,224.36/2,640,369.30 = 1,053,784.42/x - Step 3: Cross multiply
1,913,224.36x = 2,640,369.30 × 1,053,784.42 - Step 4: Simplify right side
1,913,224.36x = 2,782,380,031,386.31 - Step 5: Solve for x
x = 2,782,380,031,386.31/1,913,224.36 - Step 6: Final answer
x = 1,454,288.42
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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.