Finding the Fourth Proportional to 1,347,415.20, 2,021,122.80 and 1,249,984.35
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Solution
The fourth proportional to 1,347,415.20, 2,021,122.80 and 1,249,984.35 is: 1,874,976.53
Step by Step Solution
- Step 1: Write the proportion equation
1,347,415.20 : 2,021,122.80 = 1,249,984.35 : x - Step 2: Convert to fraction form
1,347,415.20/2,021,122.80 = 1,249,984.35/x - Step 3: Cross multiply
1,347,415.20x = 2,021,122.80 × 1,249,984.35 - Step 4: Simplify right side
1,347,415.20x = 2,526,371,869,428.18 - Step 5: Solve for x
x = 2,526,371,869,428.18/1,347,415.20 - Step 6: Final answer
x = 1,874,976.53
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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.