Finding the Fourth Proportional to 1,070,774.97, 1,606,789.46 and 430,979.05
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Solution
The fourth proportional to 1,070,774.97, 1,606,789.46 and 430,979.05 is: 646,720.94
Step by Step Solution
- Step 1: Write the proportion equation
1,070,774.97 : 1,606,789.46 = 430,979.05 : x - Step 2: Convert to fraction form
1,070,774.97/1,606,789.46 = 430,979.05/x - Step 3: Cross multiply
1,070,774.97x = 1,606,789.46 × 430,979.05 - Step 4: Simplify right side
1,070,774.97x = 692,492,595,020.81 - Step 5: Solve for x
x = 692,492,595,020.81/1,070,774.97 - Step 6: Final answer
x = 646,720.94
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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.