Finding the Fourth Proportional to 698,584.20, 1,047,876.30 and 432,863.70
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Solution
The fourth proportional to 698,584.20, 1,047,876.30 and 432,863.70 is: 649,295.55
Step by Step Solution
- Step 1: Write the proportion equation
698,584.20 : 1,047,876.30 = 432,863.70 : x - Step 2: Convert to fraction form
698,584.20/1,047,876.30 = 432,863.70/x - Step 3: Cross multiply
698,584.20x = 1,047,876.30 × 432,863.70 - Step 4: Simplify right side
698,584.20x = 453,587,612,360.31 - Step 5: Solve for x
x = 453,587,612,360.31/698,584.20 - Step 6: Final answer
x = 649,295.55
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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.