Finding the Fourth Proportional to 3,408,434.96, 5,115,296.28 and 1,280,454.80
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Solution
The fourth proportional to 3,408,434.96, 5,115,296.28 and 1,280,454.80 is: 1,921,675.42
Step by Step Solution
- Step 1: Write the proportion equation
3,408,434.96 : 5,115,296.28 = 1,280,454.80 : x - Step 2: Convert to fraction form
3,408,434.96/5,115,296.28 = 1,280,454.80/x - Step 3: Cross multiply
3,408,434.96x = 5,115,296.28 × 1,280,454.80 - Step 4: Simplify right side
3,408,434.96x = 6,549,905,675,148.15 - Step 5: Solve for x
x = 6,549,905,675,148.15/3,408,434.96 - Step 6: Final answer
x = 1,921,675.42
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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.