Finding the Fourth Proportional to 1,947,911.28, 2,687,918.04 and 1,336,588.08
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Solution
The fourth proportional to 1,947,911.28, 2,687,918.04 and 1,336,588.08 is: 1,844,354.64
Step by Step Solution
- Step 1: Write the proportion equation
1,947,911.28 : 2,687,918.04 = 1,336,588.08 : x - Step 2: Convert to fraction form
1,947,911.28/2,687,918.04 = 1,336,588.08/x - Step 3: Cross multiply
1,947,911.28x = 2,687,918.04 × 1,336,588.08 - Step 4: Simplify right side
1,947,911.28x = 3,592,639,212,280.96 - Step 5: Solve for x
x = 3,592,639,212,280.96/1,947,911.28 - Step 6: Final answer
x = 1,844,354.64
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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.