Finding the Fourth Proportional to 1,430,994.44, 1,974,808.70 and 786,431
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Solution
The fourth proportional to 1,430,994.44, 1,974,808.70 and 786,431 is: 1,085,294.77
Step by Step Solution
- Step 1: Write the proportion equation
1,430,994.44 : 1,974,808.70 = 786,431 : x - Step 2: Convert to fraction form
1,430,994.44/1,974,808.70 = 786,431/x - Step 3: Cross multiply
1,430,994.44x = 1,974,808.70 × 786,431 - Step 4: Simplify right side
1,430,994.44x = 1,553,050,780,749.70 - Step 5: Solve for x
x = 1,553,050,780,749.70/1,430,994.44 - Step 6: Final answer
x = 1,085,294.77
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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.