Finding the Fourth Proportional to 2,157,702.99, 2,975,947.74 and 1,383,407.79
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Solution
The fourth proportional to 2,157,702.99, 2,975,947.74 and 1,383,407.79 is: 1,908,024.09
Step by Step Solution
- Step 1: Write the proportion equation
2,157,702.99 : 2,975,947.74 = 1,383,407.79 : x - Step 2: Convert to fraction form
2,157,702.99/2,975,947.74 = 1,383,407.79/x - Step 3: Cross multiply
2,157,702.99x = 2,975,947.74 × 1,383,407.79 - Step 4: Simplify right side
2,157,702.99x = 4,116,949,286,148.90 - Step 5: Solve for x
x = 4,116,949,286,148.90/2,157,702.99 - Step 6: Final answer
x = 1,908,024.09
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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.