Finding the Fourth Proportional to 1,569,779.70, 2,354,669.55 and 811,619.70
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Solution
The fourth proportional to 1,569,779.70, 2,354,669.55 and 811,619.70 is: 1,217,429.55
Step by Step Solution
- Step 1: Write the proportion equation
1,569,779.70 : 2,354,669.55 = 811,619.70 : x - Step 2: Convert to fraction form
1,569,779.70/2,354,669.55 = 811,619.70/x - Step 3: Cross multiply
1,569,779.70x = 2,354,669.55 × 811,619.70 - Step 4: Simplify right side
1,569,779.70x = 1,911,096,193,770.13 - Step 5: Solve for x
x = 1,911,096,193,770.13/1,569,779.70 - Step 6: Final answer
x = 1,217,429.55
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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.