Finding the Fourth Proportional to 3,102,058.95, 4,280,779.96 and 1,725,373.05
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Solution
The fourth proportional to 3,102,058.95, 4,280,779.96 and 1,725,373.05 is: 2,380,980.66
Step by Step Solution
- Step 1: Write the proportion equation
3,102,058.95 : 4,280,779.96 = 1,725,373.05 : x - Step 2: Convert to fraction form
3,102,058.95/4,280,779.96 = 1,725,373.05/x - Step 3: Cross multiply
3,102,058.95x = 4,280,779.96 × 1,725,373.05 - Step 4: Simplify right side
3,102,058.95x = 7,385,942,375,964.08 - Step 5: Solve for x
x = 7,385,942,375,964.08/3,102,058.95 - Step 6: Final answer
x = 2,380,980.66
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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.