Finding the Fourth Proportional to 1,430,988.12, 1,974,797.82 and 786,469.50
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Solution
The fourth proportional to 1,430,988.12, 1,974,797.82 and 786,469.50 is: 1,085,346.71
Step by Step Solution
- Step 1: Write the proportion equation
1,430,988.12 : 1,974,797.82 = 786,469.50 : x - Step 2: Convert to fraction form
1,430,988.12/1,974,797.82 = 786,469.50/x - Step 3: Cross multiply
1,430,988.12x = 1,974,797.82 × 786,469.50 - Step 4: Simplify right side
1,430,988.12x = 1,553,118,254,096.49 - Step 5: Solve for x
x = 1,553,118,254,096.49/1,430,988.12 - Step 6: Final answer
x = 1,085,346.71
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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.