Finding the Fourth Proportional to 1,112,466.10, 1,669,136.55 and 438,432.70
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Solution
The fourth proportional to 1,112,466.10, 1,669,136.55 and 438,432.70 is: 657,821.43
Step by Step Solution
- Step 1: Write the proportion equation
1,112,466.10 : 1,669,136.55 = 438,432.70 : x - Step 2: Convert to fraction form
1,112,466.10/1,669,136.55 = 438,432.70/x - Step 3: Cross multiply
1,112,466.10x = 1,669,136.55 × 438,432.70 - Step 4: Simplify right side
1,112,466.10x = 731,804,044,285.19 - Step 5: Solve for x
x = 731,804,044,285.19/1,112,466.10 - Step 6: Final answer
x = 657,821.43
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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.