Finding the Fourth Proportional to 2,687,901.35, 4,029,720.73 and 1,408,263.40
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Solution
The fourth proportional to 2,687,901.35, 4,029,720.73 and 1,408,263.40 is: 2,111,278.45
Step by Step Solution
- Step 1: Write the proportion equation
2,687,901.35 : 4,029,720.73 = 1,408,263.40 : x - Step 2: Convert to fraction form
2,687,901.35/4,029,720.73 = 1,408,263.40/x - Step 3: Cross multiply
2,687,901.35x = 4,029,720.73 × 1,408,263.40 - Step 4: Simplify right side
2,687,901.35x = 5,674,908,196,131.68 - Step 5: Solve for x
x = 5,674,908,196,131.68/2,687,901.35 - Step 6: Final answer
x = 2,111,278.45
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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.